Consolidated feedback

[nicksellen]

See https://community.karrot.world/t/feedback-feature-possibility-to-combine-comments-for-selected-activity-type/1044

What does this PR do?

Reconceives showing activity feedback as an activity view rather than a feedback view. Basically grouped by activity, but it fetches from the activities endpoint now, which now includes the feedback info too.

TODO:

• [x] place feedback page
• [x] "other feedback from this place" list when giving feedback
• [x] i18n
• [x] remove old feedback components
• [x] fix backend tests

Links to related issues

Checklist

• [ ] added a test, or explain why one is not needed/possible...
• [ ] no unrelated changes
• [ ] asked someone for a code review
• [ ] joined #karrot:matrix.org
• [ ] added an entry to CHANGELOG.md (description, pull request link, username(s))
• [ ] tried out on a mobile device (does everything work as expected on a smaller screen?)

[codecov[bot]]

Codecov Report

Merging #2668 (73058f4) into master (d86fd51) will decrease coverage by 0.26%. The diff coverage is 82.44%.

@@            Coverage Diff             @@
##           master    #2668      +/-   ##
==========================================
- Coverage   75.88%   75.63%   -0.26%     
==========================================
  Files         382      386       +4     
  Lines       40929    41228     +299     
  Branches     2348     2347       -1     
==========================================
+ Hits        31059    31182     +123     
- Misses       9870    10046     +176     

Files Changed	Coverage Δ
...ivities/components/ActivityFeedbackItem.stories.js	0.00% <0.00%> (ø)
src/activities/components/ActivityItem.stories.js	0.00% <0.00%> (ø)
src/activities/helpers.js	78.51% <0.00%> (-0.59%)	:arrow_down:
src/applications/components/ApplicationItem.vue	0.00% <0.00%> (ø)
src/feedback/pages/GroupFeedback.vue	0.00% <0.00%> (ø)
src/messages/components/LatestMessageItem.vue	0.00% <0.00%> (ø)
src/messages/components/ConversationMessage.vue	91.85% <50.00%> (-1.21%)	:arrow_down:
src/feedback/helpers.js	70.58% <70.58%> (ø)
src/activities/components/ActivityItem.vue	92.82% <85.96%> (-1.18%)	:arrow_down:
src/feedback/pages/ActivityFeedback.vue	94.88% <89.28%> (-2.46%)	:arrow_down:
... and 23 more

... and 2 files with indirect coverage changes

:mega: We’re building smart automated test selection to slash your CI/CD build times. Learn more