TextEditor: Convert to east-const style

Userland/Applications/TextEditor/MainWidget.cpp

@@ -245,7 +245,7 @@ MainWidget::MainWidget()
     m_editor->on_cursor_change = [this] { update_statusbar(); };
     m_editor->on_selection_change = [this] { update_statusbar(); };
 
-    m_new_action = GUI::Action::create("&New", { Mod_Ctrl, Key_N }, Gfx::Bitmap::load_from_file("/res/icons/16x16/new.png"), [this](const GUI::Action&) {
+    m_new_action = GUI::Action::create("&New", { Mod_Ctrl, Key_N }, Gfx::Bitmap::load_from_file("/res/icons/16x16/new.png"), [this](GUI::Action const&) {
         if (editor().document().is_modified()) {
             auto save_document_first_result = GUI::MessageBox::show(window(), "Save changes to current document first?", "Warning", GUI::MessageBox::Type::Warning, GUI::MessageBox::InputType::YesNoCancel);
             if (save_document_first_result == GUI::Dialog::ExecResult::ExecYes)

Userland/Applications/TextEditor/main.cpp

@@ -24,8 +24,8 @@ int main(int argc, char** argv)
 
     auto app = GUI::Application::construct(argc, argv);
 
-    const char* preview_mode = "auto";
-    const char* file_to_edit = nullptr;
+    char const* preview_mode = "auto";
+    char const* file_to_edit = nullptr;
     Core::ArgsParser parser;
     parser.add_option(preview_mode, "Preview mode, one of 'none', 'html', 'markdown', 'auto'", "preview-mode", '\0', "mode");
     parser.add_positional_argument(file_to_edit, "File to edit, with optional starting line and column number", "file[:line[:column]]", Core::ArgsParser::Required::No);