Don't show archived places in favourites list

[nicksellen]

Fixes #2628

What does this PR do?

Filters out archived places in favourites list. There could be an argument to only show active ones, or even have a filter in the sidebar, but I opted for the simplest one that resolve the issue. I imagine getting rid of the archived ones is the most important thing right now.

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 #2629 (b2f5192) into master (e4dea01) will not change coverage. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #2629   +/-   ##
=======================================
  Coverage   76.84%   76.84%           
=======================================
  Files         376      376           
  Lines       39958    39958           
  Branches     1977     1977           
=======================================
  Hits        30704    30704           
  Misses       9254     9254           

Impacted Files	Coverage Δ
src/sidenav/components/SidenavPlaces.vue	97.69% <100.00%> (ø)

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