Made keyboard shortcuts for FileSystemDock visible in popup

(cherry picked from commit ef5c720b731090c698d59a3ea32f3369387d6972)

editor/filesystem_dock.cpp

@@ -2243,16 +2243,16 @@ void FileSystemDock::_file_and_folders_fill_popup(PopupMenu *p_popup, Vector<Str
 	}
 
 	if (p_paths.size() == 1) {
-		p_popup->add_icon_item(get_icon("ActionCopy", "EditorIcons"), TTR("Copy Path"), FILE_COPY_PATH);
+		p_popup->add_icon_shortcut(get_icon("ActionCopy", "EditorIcons"), ED_GET_SHORTCUT("filesystem_dock/copy_path"), FILE_COPY_PATH);
 		if (p_paths[0] != "res://") {
-			p_popup->add_icon_item(get_icon("Rename", "EditorIcons"), TTR("Rename..."), FILE_RENAME);
-			p_popup->add_icon_item(get_icon("Duplicate", "EditorIcons"), TTR("Duplicate..."), FILE_DUPLICATE);
+			p_popup->add_icon_shortcut(get_icon("Rename", "EditorIcons"), ED_GET_SHORTCUT("filesystem_dock/rename"), FILE_RENAME);
+			p_popup->add_icon_shortcut(get_icon("Duplicate", "EditorIcons"), ED_GET_SHORTCUT("filesystem_dock/duplicate"), FILE_DUPLICATE);
 		}
 	}
 
 	if (p_paths.size() > 1 || p_paths[0] != "res://") {
 		p_popup->add_icon_item(get_icon("MoveUp", "EditorIcons"), TTR("Move To..."), FILE_MOVE);
-		p_popup->add_icon_item(get_icon("Remove", "EditorIcons"), TTR("Move to Trash"), FILE_REMOVE);
+		p_popup->add_icon_shortcut(get_icon("Remove", "EditorIcons"), ED_GET_SHORTCUT("filesystem_dock/delete"), FILE_REMOVE);
 	}
 
 	if (p_paths.size() == 1) {
@@ -2558,8 +2558,8 @@ FileSystemDock::FileSystemDock(EditorNode *p_editor) {
 	// `KEY_MASK_CMD | KEY_C` conflicts with other editor shortcuts.
 	ED_SHORTCUT("filesystem_dock/copy_path", TTR("Copy Path"), KEY_MASK_CMD | KEY_MASK_SHIFT | KEY_C);
 	ED_SHORTCUT("filesystem_dock/duplicate", TTR("Duplicate..."), KEY_MASK_CMD | KEY_D);
-	ED_SHORTCUT("filesystem_dock/delete", TTR("Delete"), KEY_DELETE);
-	ED_SHORTCUT("filesystem_dock/rename", TTR("Rename"), KEY_F2);
+	ED_SHORTCUT("filesystem_dock/delete", TTR("Move to Trash"), KEY_DELETE);
+	ED_SHORTCUT("filesystem_dock/rename", TTR("Rename..."), KEY_F2);
 
 	VBoxContainer *top_vbc = memnew(VBoxContainer);
 	add_child(top_vbc);