Everywhere: Add sv suffix to strings relying on StringView(char const*)

Each of these strings would previously rely on StringView's char const*
constructor overload, which would call __builtin_strlen on the string.
Since we now have operator ""sv, we can replace these with much simpler
versions. This opens the door to being able to remove
StringView(char const*).

No functional changes.

Userland/Libraries/LibGUI/CommonLocationsProvider.cpp

@@ -61,8 +61,8 @@ void CommonLocationsProvider::load_from_json(String const& json_path)
         if (!entry_value.is_object())
             continue;
         auto entry = entry_value.as_object();
-        auto name = entry.get("name").to_string();
-        auto path = entry.get("path").to_string();
+        auto name = entry.get("name"sv).to_string();
+        auto path = entry.get("path"sv).to_string();
         s_common_locations.append({ name, path });
     }