Compound: add SuperButton and GradientFAB components

[jmartinesp]

Type of change

• Feature
• Bugfix
• Technical
• Other :

Content

• Compound: add SuperButton and GradientFAB components
• Also add ButtonSize.Small and adjust existing Button component

Motivation and context

Screenshots / GIFs

Tests

• Step 1
• Step 2
• Step ...

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

[github-actions]

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[codecov]

Codecov Report

Attention: Patch coverage is 89.01099% with 10 lines in your changes are missing coverage. Please review.

Project coverage is 73.62%. Comparing base (f0cf129) to head (88b3c33).
Report is 53 commits behind head on develop.

Files	Patch %	Lines
...ries/designsystem/components/button/SuperButton.kt	88.00%	2 Missing and 4 partials ⚠️
.../components/button/GradientFloatingActionButton.kt	88.57%	1 Missing and 3 partials ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2696      +/-   ##
===========================================
+ Coverage    73.58%   73.62%   +0.03%     
===========================================
  Files         1460     1462       +2     
  Lines        35335    35426      +91     
  Branches      6792     6808      +16     
===========================================
+ Hits         26000    26081      +81     
- Misses        5796     5799       +3     
- Partials      3539     3546       +7     

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[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

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

See analysis details on SonarCloud