Fix memory leaks

[memostark]

The memory leaks produced this month (April) at:

• AppInspectionService.mInspectorBridges (MainActivity)
• ViewRootImpl$$ExternalSyntheticLambda10 (MainActivity)
• AppInspectionService.mInspectorBridges (ProcessTextActivity)

Older memory leaks (February)

• SnapshotKt.applyObservers (MainActivity)
• DialogLayout.parentContext (ProcessTextActivity)
• InputMethodManager.mImeInsetsConsumer (MainActivity)

All of the memory leaks seem to be related to Compose, the most recent probably only happened when using the Layout Inspector. In any case, try to find a fix for these leaks.

[memostark]

Haven't been able to reproduce any of these leaks. Need to add more specific steps to reproduce.