Add line breaks in buttons so text isn't cut

[benjaoming]

Summary

Simple fix. Hopefully it doesn't break other aspects of our buttons, but manual tests of the next prerelease will have to verify this @radinamatic

Otherwise, this is easy to revert.

TODO

If not all TODOs are marked, this PR is considered WIP (work in progress)

• [x] Has documentation been written/updated?
• [x] Have you written release notes for the upcoming release?

Reviewer guidance

None, will be thoroughly tested in the prerelease

Issues addressed

5004

[benjaoming]

Wrap looks like this:

[codecov[bot]]

Codecov Report

Merging #5448 into 0.17.x will decrease coverage by 0.01%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           0.17.x    #5448      +/-   ##
==========================================
- Coverage   61.39%   61.37%   -0.02%     
==========================================
  Files         118      118              
  Lines        6574     6574              
==========================================
- Hits         4036     4035       -1     
- Misses       2538     2539       +1

Impacted Files	Coverage Δ
kalite/cli.py	42.35% <ø> (ø)	:arrow_up:
kalite/coachreports/models.py	84.95% <0%> (-0.89%)	:arrow_down:

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