fix(ui): android hardware back press for bottom-sheets

[pwltr]

Description

• Add a new hook useBottomSheetScreenBackPress to properly handle hardware back button on Android when bottom-sheets are open.
• Add missing back button handling for standalone bottom-sheets
• Fix back button handling for navigators nested in bottom-sheets
• Add closeAllSheets action

Linked Issues/Tasks

Closes https://github.com/synonymdev/bitkit/issues/2371

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Refactoring (improving code without creating new functionality)

Tests

• Detox test
• Unit test
• No test

QA Notes

Make sure back button behaves as expected when bottom-sheets are open. This is Android only.