Upgrade to element-web 1.11.47 and 48 and 49

[estellecomment]

What I see coming :

1.11.47
Fix: element-hq/element-web#26309
-> remove mobile_builds patch

1.11.48
Use configurable github issue links more consistently (matrix-org/matrix-react-sdk#11796).
-> remove some of our changes to BugReportDialog, ErrorBoundary, RoomPreviewBar

[estellecomment]

v1.11.49
This release brings just one fix to a regression from v1.11.48 which could lead to some of your rooms not showing up, after updating if some rooms are still missing you should clear cache from settings, but this is unlikely to be required. You can see the full changelog at https://github.com/vector-im/element-web/releases/tag/v1.11.49

-> we should not upgrade to 1.11.48 without 1.11.49

[estellecomment]

done