Clip text in NodeDock toolbuttons to prevent dock size changes

Fixes #35367

editor/node_dock.cpp

@@ -105,6 +105,7 @@ NodeDock::NodeDock() {
 	connections_button->set_toggle_mode(true);
 	connections_button->set_pressed(true);
 	connections_button->set_h_size_flags(SIZE_EXPAND_FILL);
+	connections_button->set_clip_text(true);
 	mode_hb->add_child(connections_button);
 	connections_button->connect("pressed", this, "show_connections");
 
@@ -113,6 +114,7 @@ NodeDock::NodeDock() {
 	groups_button->set_toggle_mode(true);
 	groups_button->set_pressed(false);
 	groups_button->set_h_size_flags(SIZE_EXPAND_FILL);
+	groups_button->set_clip_text(true);
 	mode_hb->add_child(groups_button);
 	groups_button->connect("pressed", this, "show_groups");