fix: added fix for panel sync mode in non-view panels

frontend/src/hooks/dashboard/__test__/useDashboardCursorSyncMode.test.ts

@@ -118,7 +118,7 @@ describe('useDashboardCursorSyncMode', () => {
 	describe.each([[PanelMode.DASHBOARD_EDIT], [PanelMode.STANDALONE_VIEW]])(
 		'in %s mode (cursor sync disabled)',
 		(panelMode) => {
-			it('returns the Crosshair default and ignores any stored value', () => {
+			it('returns None and ignores any stored value', () => {
 				useDashboardPreferencesStore.setState({
 					preferences: { 'dash-1': { cursorSyncMode: DashboardCursorSync.Tooltip } },
 				});
@@ -127,7 +127,7 @@ describe('useDashboardCursorSyncMode', () => {
 					useDashboardCursorSyncMode('dash-1', panelMode),
 				);
 
-				expect(result.current[0]).toBe(DashboardCursorSync.Crosshair);
+				expect(result.current[0]).toBe(DashboardCursorSync.None);
 			});
 
 			it('treats the setter as a no-op and does not write to the store', () => {
@@ -136,14 +136,14 @@ describe('useDashboardCursorSyncMode', () => {
 				);
 
 				act(() => {
-					result.current[1](DashboardCursorSync.None);
+					result.current[1](DashboardCursorSync.Tooltip);
 				});
 
 				expect(useDashboardPreferencesStore.getState().preferences).toStrictEqual(
 					{},
 				);
 				expect(localStorage.getItem(STORAGE_KEY)).toBeNull();
-				expect(result.current[0]).toBe(DashboardCursorSync.Crosshair);
+				expect(result.current[0]).toBe(DashboardCursorSync.None);
 			});
 		},
 	);

frontend/src/hooks/dashboard/useDashboardCursorSyncMode.ts

@@ -3,8 +3,6 @@ import { DashboardCursorSync } from 'lib/uPlotV2/plugins/TooltipPlugin/types';
 import { useDashboardPreference } from './useDashboardPreference';
 import { PanelMode } from 'container/DashboardContainer/visualization/panels/types';
 
-const DEFAULT_CURSOR_SYNC_MODE = DashboardCursorSync.Crosshair;
-
 const NOOP = (): void => {};
 
 export function useDashboardCursorSyncMode(
@@ -14,14 +12,14 @@ export function useDashboardCursorSyncMode(
 	const [value, setValue] = useDashboardPreference(
 		dashboardId,
 		'cursorSyncMode',
-		DEFAULT_CURSOR_SYNC_MODE,
+		DashboardCursorSync.Crosshair,
 	);
 
 	// Chart panels in edit / standalone modes don't participate in cross-panel
 	// sync, so surface the default with a no-op setter for them. Callers without
 	// a panelMode (e.g. dashboard settings) read/write the preference normally.
 	if (panelMode && panelMode !== PanelMode.DASHBOARD_VIEW) {
-		return [DEFAULT_CURSOR_SYNC_MODE, NOOP];
+		return [DashboardCursorSync.None, NOOP];
 	}
 
 	return [value, setValue];