iOS 26: Remove BottomSheetPresentationController

[kean]

CreateButtonActionSheet was the last place using it. We now take advantage of the native zoom/popover/sheet transition. I also removed deprecated gridicons.

zoom-2.mov

[dangermattic]

	1 Warning
⚠️	This PR is larger than 500 lines of changes. Please consider splitting it into smaller PRs for easier and faster reviews.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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