Gitter sunsetting: Pass feature flag through to everywhere we use getVisibleRooms and getRoomUpgradeHistory

[andybalaam]

Towards MSC3946

Pass the MSC3946 feature flag in wherever we call getVisibleRooms and getRoomUpgradeHistory.

There may be a unified way we should approach this, but the code locations that call one or both of these functions are here:

• src/stores/BreadcrumbsStore.ts - PR10295
• src/stores/notifications/RoomNotificationStateStore.ts PR10297
• src/stores/widgets/WidgetLayoutStore.ts PR10326
• src/stores/spaces/SpaceStore.js PR10332
• src/stores/widgets/StopGapWidgetDriver.ts PR10338
• src/stores/OwnBeaconStore.ts PR10339
• src/utils/leave-behaviour.ts PR10340
• src/components/structures/SpaceHierarchy.tsx PR10341
• src/stores/room-list/RoomListStore.ts
• src/components/views/dialogs/AddExistingToSpaceDialog.tsx PR10342
• src/components/views/dialogs/spotlight/SpotlightDialog.tsx
• src/components/views/dialogs/ForwardDialog.tsx PR10344
• src/autocomplete/RoomProvider.tsx PR10346
• src/autocomplete/SpaceProvider.tsx PR10348

[andybalaam]

At first glance, none of the above except the 2 already-completed items (RoomListStore.ts and SpotlightDialog.tsx) look crucial for Gitter sunsetting to go ahead.