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.

AK/JsonPath.cpp

@@ -34,12 +34,12 @@ JsonValue JsonPath::resolve(JsonValue const& top_root) const
 String JsonPath::to_string() const
 {
     StringBuilder builder;
-    builder.append("{ .");
+    builder.append("{ ."sv);
     for (auto const& el : *this) {
-        builder.append(" > ");
+        builder.append("sv > "sv);
         builder.append(el.to_string());
     }
-    builder.append(" }");
+    builder.append("sv }"sv);
     return builder.to_string();
 }