Update all editor viewports after settings changes

(cherry picked from commit 55b478afd912d4b6788f736efa87a33777aba5a4)

editor/plugins/spatial_editor_plugin.cpp

@@ -3362,6 +3362,7 @@ void SpatialEditorViewport::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_menu_option"), &SpatialEditorViewport::_menu_option);
 	ClassDB::bind_method(D_METHOD("_toggle_camera_preview"), &SpatialEditorViewport::_toggle_camera_preview);
 	ClassDB::bind_method(D_METHOD("_preview_exited_scene"), &SpatialEditorViewport::_preview_exited_scene);
+	ClassDB::bind_method(D_METHOD("_update_camera"), &SpatialEditorViewport::_update_camera);
 	ClassDB::bind_method(D_METHOD("update_transform_gizmo_view"), &SpatialEditorViewport::update_transform_gizmo_view);
 	ClassDB::bind_method(D_METHOD("_selection_result_pressed"), &SpatialEditorViewport::_selection_result_pressed);
 	ClassDB::bind_method(D_METHOD("_selection_menu_hide"), &SpatialEditorViewport::_selection_menu_hide);
@@ -6180,6 +6181,10 @@ SpatialEditor::SpatialEditor(EditorNode *p_editor) {
 	settings_zfar->set_value(EDITOR_DEF("editors/3d/default_z_far", 1500));
 	settings_vbc->add_margin_child(TTR("View Z-Far:"), settings_zfar);
 
+	for (uint32_t i = 0; i < VIEWPORTS_COUNT; ++i) {
+		settings_dialog->connect("confirmed", viewports[i], "_update_camera", varray(0.0));
+	}
+
 	/* XFORM DIALOG */
 
 	xform_dialog = memnew(ConfirmationDialog);