For #14725 - Resize search engine radio button

[codrut-topliceanu]

For #14725

Pull Request checklist

• Tests: This PR does not include any tests as it is only a minor change.
• Screenshots: This PR includes screenshots.
• Accessibility: The code in this PR follows accessibility best practices.

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2. click Details next to "Taskcluster (pull_request)" after it appears and then finishes with a green checkmark,
3. click on the "Fenix - assemble" task, then click "Run Artifacts".
4. the APK links should be on the left side of the screen, named for each CPU architecture

[codecov-commenter]

Codecov Report

Merging #14979 into master will decrease coverage by 0.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master   #14979      +/-   ##
============================================
- Coverage     29.37%   29.36%   -0.02%     
  Complexity     1154     1154              
============================================
  Files           447      447              
  Lines         18348    18348              
  Branches       2379     2379              
============================================
- Hits           5390     5388       -2     
- Misses        12582    12584       +2     
  Partials        376      376              

Impacted Files	Coverage Δ	Complexity Δ
...mponents/searchengine/FenixSearchEngineProvider.kt	62.16% <0.00%> (-1.81%)	14.00% <0.00%> (ø%)

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