[Location sharing] Fix crash when starting/stopping a live when offline (PSF-1124)

[mnaturel]

Type of change

• Feature
• Bugfix
• Technical
• Other :

Content

Catching errors which may be thrown during start/stop process of a live location share. The errors are forwarded to the UI: an error dialog is shown in both TimelineFragment and LocationLiveMapViewFragment.

Motivation and context

Closes #6315
Fixes https://github.com/matrix-org/element-android-rageshakes/issues/39071

Screenshots / GIFs

Tests

• Enable airplane mode
• Start a live location share
• Check an error dialog is shown in the timeline screen
• Disable airplane mode
• Start a live location share
• Check the live is correctly started
• Enable airplane mode
• Stop the live
• Check an error dialog is shown in the timeline screen
• Go to the map screen
• Stop the live
• Check an error dialog is shown in the map screen
• Disable airplane mode
• Stop the live
• Check the live is correctly stopped

Tested devices

• Physical
• Emulator
• OS version(s): Android 11

Checklist

• Changes has been tested on an Android device or Android emulator with API 21
• UI change has been tested on both light and dark themes
• Accessibility has been taken into account. See https://github.com/vector-im/element-android/blob/develop/CONTRIBUTING.md#accessibility
• Pull request is based on the develop branch
• Pull request includes a new file under ./changelog.d. See https://github.com/vector-im/element-android/blob/develop/CONTRIBUTING.md#changelog
• Pull request includes screenshots or videos if containing UI changes
• Pull request includes a sign off
• You've made a self review of your PR
• If you have modified the screen flow, or added new screens to the application, you have updated the test UiAllScreensSanityTest.allScreensTest()

[ganfra]

LGTM!

[onurays]

Nice improvements! LGTM.

[sonarqubecloud]

SonarCloud Quality Gate failed.   

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