api: expose linked component

[nijel]

Proposed changes

Fixes #10926

Checklist

• Lint and unit tests pass locally with my changes.
• I have added tests that prove my fix is effective or that my feature works.
• I have added documentation to describe my feature.
• I have squashed my commits into logic units.
• I have described the changes in the commit messages.

Other information

[codecov]

Codecov Report

Attention: 24 lines in your changes are missing coverage. Please review.

Comparison is base (1419763) 90.88% compared to head (cdf1234) 90.80%.
Report is 146 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10992      +/-   ##
==========================================
- Coverage   90.88%   90.80%   -0.09%     
==========================================
  Files         541      554      +13     
  Lines       57091    57430     +339     
  Branches     9076     9162      +86     
==========================================
+ Hits        51888    52148     +260     
- Misses       3555     3656     +101     
+ Partials     1648     1626      -22     

Files	Coverage Δ
weblate/accounts/notifications.py	95.71% <ø> (ø)
weblate/accounts/tests/test_views.py	100.00% <ø> (ø)
weblate/addons/base.py	88.59% <100.00%> (ø)
weblate/addons/forms.py	93.17% <100.00%> (-0.10%)	⬇️
weblate/api/serializers.py	92.52% <100.00%> (+0.05%)	⬆️
weblate/api/tests.py	100.00% <100.00%> (ø)
weblate/auth/utils.py	89.09% <100.00%> (+10.65%)	⬆️
weblate/checks/icu.py	87.60% <100.00%> (ø)
weblate/checks/parser.py	73.68% <100.00%> (ø)
weblate/checks/render.py	89.39% <ø> (ø)
... and 19 more

... and 70 files with indirect coverage changes