fix(mobile): apply useModalStyle to 7 more modal dialogs

ScheduleMessageModal, PollCreator, JoinAddressPrompt, JumpToTime,
EditHistoryModal, ForwardMessageDialog, RemindMeDialog — all now
render fullscreen on mobile (≤750px) and as a capped-width box on
desktop, consistent with the existing useModalStyle pattern.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/app/features/room/message/ForwardMessageDialog.tsx

@@ -19,6 +19,7 @@ import { MatrixEvent, Room } from 'matrix-js-sdk';
 import { useAtomValue } from 'jotai';
 import { useMatrixClient } from '../../../hooks/useMatrixClient';
 import { stopPropagation } from '../../../utils/keyboard';
+import { useModalStyle } from '../../../hooks/useModalStyle';
 import { mDirectAtom } from '../../../state/mDirectList';
 import { useMediaAuthentication } from '../../../hooks/useMediaAuthentication';
 import { mxcUrlToHttp } from '../../../utils/matrix';
@@ -78,6 +79,7 @@ type Props = {
 
 export function ForwardMessageDialog({ mEvent, onClose }: Props) {
   const mx = useMatrixClient();
+  const modalStyle = useModalStyle(400);
   const directs = useAtomValue(mDirectAtom);
   const useAuthentication = useMediaAuthentication();
   const [query, setQuery] = useState('');
@@ -129,6 +131,7 @@ export function ForwardMessageDialog({ mEvent, onClose }: Props) {
               borderRadius: config.radii.R500,
               display: 'flex',
               flexDirection: 'column',
+              ...modalStyle,
             }}
           >
             <Box