Open the keyboard (and keep it opened) when creating a poll.

[bmarty]

Type of change

• Feature
• Bugfix
• Technical
• Other :

Content

Open the keyboard (and keep it opened) when creating a poll.

The Poll screen correctly requestFocus on the question field, but actually the keyboard was hidden later from the MessagesView.

Actually replace a Disposable effect by a action to close the keyboard in the onBackPressed callback.

Motivation and context

Closes #2329

Screenshots / GIFs

Tests

• Start a poll from a timeline and observe that the keyboard is opened and stays opened
• Go back to the timeline
• Click on the composer to open the keyboard
• Click on back top start action to go back to the room list
• observe that the keyboard is closed automatically (so no regression on this)

I did more test to see if the keyboard may stay open when it should not, but I did not find any case with that.

Tested devices

• Physical
• Emulator
• OS version(s):

Checklist

• Changes have been tested on an Android device or Android emulator with API 23
• UI change has been tested on both light and dark themes
• Accessibility has been taken into account. See https://github.com/element-hq/element-x-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/element-hq/element-x-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

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarCloud

[github-actions]

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[jmartinesp]

LGTM, thanks!