Replace usage of forwardRef with React 19 ref prop (#29803)

* Replace usage of `forwardRef` with React 19 ref prop

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Add lint rule

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

---------

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

src/components/views/rooms/wysiwyg_composer/hooks/useWysiwygEditActionHandler.ts

@@ -22,7 +22,7 @@ import { useScopedRoomContext } from "../../../../../contexts/ScopedRoomContext.
 
 export function useWysiwygEditActionHandler(
     disabled: boolean,
-    composerElement: RefObject<HTMLElement>,
+    composerElement: RefObject<HTMLElement | null> | undefined,
     composerFunctions: ComposerFunctions,
 ): void {
     const roomContext = useScopedRoomContext("timelineRenderingType");
@@ -33,7 +33,7 @@ export function useWysiwygEditActionHandler(
         (payload: ActionPayload) => {
             // don't let the user into the composer if it is disabled - all of these branches lead
             // to the cursor being in the composer
-            if (disabled || !composerElement.current) return;
+            if (disabled || !composerElement?.current) return;
 
             const context = payload.context ?? TimelineRenderingType.Room;