[8.x] [Lens] Fix missing embeddable panel titles (#203355) (#203621)

# Backport

This will backport the following commits from `main` to `8.x`:
- [[Lens] Fix missing embeddable panel titles
(#203355)](#203355)

<!--- Backport version: 9.4.3 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT [{"author":{"name":"Marco
Vettorello","email":"[email protected]"},"sourceCommit":{"committedDate":"2024-12-10T15:39:15Z","message":"[Lens]
Fix missing embeddable panel titles (#203355)\n\n## Summary\r\n\r\nWhen
using the new Custom Lens embeddable component, the titles are\r\nhidden
by default due to to a regression introduced
in\r\nhttps://github.com//pull/186642.\r\nThis PR should
fix the correct title handling of the header visibility\r\nby hiding or
showing the wrapping Panel title depending on the\r\n`hidePanelTitles`
props of the `LensRenderer` component\r\n\r\n\r\nfix
https://github.com/elastic/kibana/issues/203354","sha":"6e57a23d18d949e7ac3118c1f27550e2ba9eedf8","branchLabelMapping":{"^v9.0.0$":"main","^v8.18.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["bug","Team:Visualizations","release_note:skip","Feature:Lens","v9.0.0","backport:prev-minor","Feature:Embeddables"],"title":"[Lens]
Fix missing embeddable panel
titles","number":203355,"url":"https://github.com/elastic/kibana/pull/203355","mergeCommit":{"message":"[Lens]
Fix missing embeddable panel titles (#203355)\n\n## Summary\r\n\r\nWhen
using the new Custom Lens embeddable component, the titles are\r\nhidden
by default due to to a regression introduced
in\r\nhttps://github.com//pull/186642.\r\nThis PR should
fix the correct title handling of the header visibility\r\nby hiding or
showing the wrapping Panel title depending on the\r\n`hidePanelTitles`
props of the `LensRenderer` component\r\n\r\n\r\nfix
https://github.com/elastic/kibana/issues/203354","sha":"6e57a23d18d949e7ac3118c1f27550e2ba9eedf8"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"main","label":"v9.0.0","branchLabelMappingKey":"^v9.0.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/203355","number":203355,"mergeCommit":{"message":"[Lens]
Fix missing embeddable panel titles (#203355)\n\n## Summary\r\n\r\nWhen
using the new Custom Lens embeddable component, the titles are\r\nhidden
by default due to to a regression introduced
in\r\nhttps://github.com//pull/186642.\r\nThis PR should
fix the correct title handling of the header visibility\r\nby hiding or
showing the wrapping Panel title depending on the\r\n`hidePanelTitles`
props of the `LensRenderer` component\r\n\r\n\r\nfix
https://github.com/elastic/kibana/issues/203354","sha":"6e57a23d18d949e7ac3118c1f27550e2ba9eedf8"}}]}]
BACKPORT-->

Co-authored-by: Marco Vettorello <[email protected]>

x-pack/plugins/lens/public/react_embeddable/renderer/lens_custom_renderer_component.tsx

@@ -59,6 +59,7 @@ export function LensRenderer({
   filters,
   timeRange,
   disabledActions,
+  hidePanelTitles,
   ...props
 }: LensRendererProps) {
   // Use the settings interface to store panel settings
@@ -71,6 +72,7 @@ export function LensRenderer({
   }, []);
   const disabledActionIds$ = useObservableVariable(disabledActions);
   const viewMode$ = useObservableVariable(viewMode);
+  const hidePanelTitles$ = useObservableVariable(hidePanelTitles);
 
   // Lens API will be set once, but when set trigger a reflow to adopt the latest attributes
   const [lensApi, setLensApi] = useState<LensApi | undefined>(undefined);
@@ -112,7 +114,6 @@ export function LensRenderer({
   const panelProps: PanelProps = useMemo(() => {
     return {
       hideInspector: !showInspector,
-      hideHeader: showPanelChrome,
       showNotifications: false,
       showShadow: false,
       showBadges: false,
@@ -124,7 +125,7 @@ export function LensRenderer({
         return (extraActions ?? []).concat(actions || []);
       },
     };
-  }, [showInspector, showPanelChrome, withDefaultActions, extraActions, lensApi]);
+  }, [showInspector, withDefaultActions, extraActions, lensApi]);
 
   return (
     <ReactEmbeddableRenderer<LensSerializedState, LensRuntimeState, LensApi>
@@ -147,6 +148,7 @@ export function LensRenderer({
           ...initialStateRef.current,
           attributes: props.attributes,
         }),
+        hidePanelTitle: hidePanelTitles$,
       })}
       onApiAvailable={setLensApi}
       hidePanelChrome={!showPanelChrome}