### Godot version

4.0.beta9

### System information

Linux x86_64

### Issue description

The default Next Script / Previous Script shortcuts insert angle brackets into code when switching scripts.
Presumably this affects all "modifier + printable character" shortcuts.

Workaround for next/prev script: change shortcuts to ctrl-pgup and ctrl-pgdn

### Steps to reproduce

Editor Settings > Shortcuts > ensure that Next Script / Previous Script are set to defaults.
Open any script in the script editor.
Press ctrl-shift-comma or ctrl-shift-period.

### Minimal reproduction project

N/A
#include "script_editor_plugin.h"
#include "core/config/project_settings.h"
#include "core/input/input.h"
#include "core/io/file_access.h"
#include "core/io/resource_loader.h"
#include "core/os/keyboard.h"
#include "core/os/os.h"
#include "core/version.h"
#include "editor/debugger/editor_debugger_node.h"
#include "editor/debugger/script_editor_debugger.h"
#include "editor/editor_file_dialog.h"
#include "editor/editor_help_search.h"
#include "editor/editor_node.h"
#include "editor/editor_paths.h"
#include "editor/editor_run_script.h"
#include "editor/editor_scale.h"
#include "editor/editor_settings.h"
#include "editor/filesystem_dock.h"
#include "editor/find_in_files.h"
#include "editor/inspector_dock.h"
#include "editor/node_dock.h"
#include "editor/plugins/shader_editor_plugin.h"
#include "editor/plugins/text_shader_editor.h"
#include "scene/main/window.h"
#include "scene/scene_string_names.h"
#include "script_text_editor.h"
#include "servers/display_server.h"
#include "text_editor.h"
String EditorSyntaxHighlighter::_get_name() const {