Everywhere: Rename {Deprecated => Byte}String

This commit un-deprecates DeprecatedString, and repurposes it as a byte
string.
As the null state has already been removed, there are no other
particularly hairy blockers in repurposing this type as a byte string
(what it _really_ is).

This commit is auto-generated:
  $ xs=$(ack -l \bDeprecatedString\b\|deprecated_string AK Userland \
    Meta Ports Ladybird Tests Kernel)
  $ perl -pie 's/\bDeprecatedString\b/ByteString/g;
    s/deprecated_string/byte_string/g' $xs
  $ clang-format --style=file -i \
    $(git diff --name-only | grep \.cpp\|\.h)
  $ gn format $(git ls-files '*.gn' '*.gni')

Userland/Libraries/LibVT/Attribute.h

@@ -13,7 +13,7 @@
 #include <LibVT/XtermColors.h>
 
 #ifndef KERNEL
-#    include <AK/DeprecatedString.h>
+#    include <AK/ByteString.h>
 #endif
 
 namespace VT {
@@ -37,8 +37,8 @@ struct Attribute {
     Color background_color { default_background_color };
 
 #ifndef KERNEL
-    DeprecatedString href;
-    Optional<DeprecatedString> href_id;
+    ByteString href;
+    Optional<ByteString> href_id;
 #endif
 
     enum class Flags : u8 {

Userland/Libraries/LibVT/Terminal.cpp

@@ -1264,7 +1264,7 @@ void Terminal::execute_osc_sequence(OscParameters parameters, u8 last_byte)
             // FIXME: the split breaks titles containing semicolons.
             // Should we expose the raw OSC string from the parser? Or join by semicolon?
 #ifndef KERNEL
-            m_current_window_title = stringview_ify(1).to_deprecated_string();
+            m_current_window_title = stringview_ify(1).to_byte_string();
             m_client.set_window_title(m_current_window_title);
 #endif
         }
@@ -1280,7 +1280,7 @@ void Terminal::execute_osc_sequence(OscParameters parameters, u8 last_byte)
         } else {
             m_current_state.attribute.href = stringview_ify(2);
             // FIXME: Respect the provided ID
-            m_current_state.attribute.href_id = DeprecatedString::number(m_next_href_id++);
+            m_current_state.attribute.href_id = ByteString::number(m_next_href_id++);
         }
 #endif
         break;

Userland/Libraries/LibVT/Terminal.h

@@ -16,7 +16,7 @@
 #include <LibVT/Position.h>
 
 #ifndef KERNEL
-#    include <AK/DeprecatedString.h>
+#    include <AK/ByteString.h>
 #    include <LibVT/Attribute.h>
 #    include <LibVT/Line.h>
 #else
@@ -435,8 +435,8 @@ protected:
     Attribute m_saved_attribute;
 
 #ifndef KERNEL
-    DeprecatedString m_current_window_title;
-    Vector<DeprecatedString> m_title_stack;
+    ByteString m_current_window_title;
+    Vector<ByteString> m_title_stack;
 #endif
 
 #ifndef KERNEL

Userland/Libraries/LibVT/TerminalWidget.cpp

@@ -7,7 +7,7 @@
  */
 
 #include "TerminalWidget.h"
-#include <AK/DeprecatedString.h>
+#include <AK/ByteString.h>
 #include <AK/LexicalPath.h>
 #include <AK/StdLibExtras.h>
 #include <AK/StringBuilder.h>
@@ -982,7 +982,7 @@ int TerminalWidget::scroll_length() const
     return m_scrollbar->step();
 }
 
-DeprecatedString TerminalWidget::selected_text() const
+ByteString TerminalWidget::selected_text() const
 {
     StringBuilder builder;
 
@@ -1008,7 +1008,7 @@ DeprecatedString TerminalWidget::selected_text() const
         }
     }
 
-    return builder.to_deprecated_string();
+    return builder.to_byte_string();
 }
 
 int TerminalWidget::first_selection_column_on_row(int row) const
@@ -1133,7 +1133,7 @@ void TerminalWidget::context_menu_event(GUI::ContextMenuEvent& event)
             auto af = Desktop::AppFile::get_for_app(LexicalPath::basename(handler));
             if (!af->is_valid())
                 continue;
-            auto action = GUI::Action::create(DeprecatedString::formatted("&Open in {}", af->name()), af->icon().bitmap_for_size(16), [this, handler](auto&) {
+            auto action = GUI::Action::create(ByteString::formatted("&Open in {}", af->name()), af->icon().bitmap_for_size(16), [this, handler](auto&) {
                 Desktop::Launcher::open(m_context_menu_href, handler);
             });
 
@@ -1181,7 +1181,7 @@ void TerminalWidget::drop_event(GUI::DropEvent& event)
             if (url.scheme() == "file")
                 send_non_user_input(url.serialize_path().bytes());
             else
-                send_non_user_input(url.to_deprecated_string().bytes());
+                send_non_user_input(url.to_byte_string().bytes());
 
             first = false;
         }
@@ -1360,7 +1360,7 @@ Optional<VT::CursorShape> TerminalWidget::parse_cursor_shape(StringView cursor_s
     return {};
 }
 
-DeprecatedString TerminalWidget::stringify_cursor_shape(VT::CursorShape cursor_shape)
+ByteString TerminalWidget::stringify_cursor_shape(VT::CursorShape cursor_shape)
 {
     switch (cursor_shape) {
     case VT::CursorShape::Block:

Userland/Libraries/LibVT/TerminalWidget.h

@@ -7,7 +7,7 @@
 
 #pragma once
 
-#include <AK/DeprecatedString.h>
+#include <AK/ByteString.h>
 #include <LibCore/ElapsedTimer.h>
 #include <LibCore/Notifier.h>
 #include <LibCore/Timer.h>
@@ -57,7 +57,7 @@ public:
 
     bool has_selection() const;
     bool selection_contains(const VT::Position&) const;
-    DeprecatedString selected_text() const;
+    ByteString selected_text() const;
     VT::Range normalized_selection() const { return m_selection.normalized(); }
     void set_selection(const VT::Range& selection);
     VT::Position buffer_position_at(Gfx::IntPoint) const;
@@ -103,7 +103,7 @@ public:
     virtual void set_cursor_shape(CursorShape) override;
 
     static Optional<VT::CursorShape> parse_cursor_shape(StringView);
-    static DeprecatedString stringify_cursor_shape(VT::CursorShape);
+    static ByteString stringify_cursor_shape(VT::CursorShape);
 
 private:
     TerminalWidget(int ptm_fd, bool automatic_size_policy);
@@ -136,7 +136,7 @@ private:
     virtual void emit(u8 const*, size_t) override;
 
     // ^GUI::Clipboard::ClipboardClient
-    virtual void clipboard_content_did_change(DeprecatedString const&) override { update_paste_action(); }
+    virtual void clipboard_content_did_change(ByteString const&) override { update_paste_action(); }
 
     void send_non_user_input(ReadonlyBytes);
 
@@ -167,21 +167,21 @@ private:
 
     VT::Range m_selection;
 
-    DeprecatedString m_hovered_href;
-    Optional<DeprecatedString> m_hovered_href_id;
+    ByteString m_hovered_href;
+    Optional<ByteString> m_hovered_href_id;
 
-    DeprecatedString m_active_href;
-    Optional<DeprecatedString> m_active_href_id;
+    ByteString m_active_href;
+    Optional<ByteString> m_active_href_id;
 
     // Snapshot of m_hovered_href when opening a context menu for a hyperlink.
-    DeprecatedString m_context_menu_href;
+    ByteString m_context_menu_href;
 
     Gfx::Color m_colors[256];
     Gfx::Color m_default_foreground_color;
     Gfx::Color m_default_background_color;
     bool m_show_bold_text_as_bright { true };
 
-    DeprecatedString m_color_scheme_name;
+    ByteString m_color_scheme_name;
 
     BellMode m_bell_mode { BellMode::Visible };
     bool m_alt_key_held { false };