Add archived label for code search results in archived repo's

[jpraet]

When searching through the code (exlore -> code) you may find results in archived repo's. This PR adds a label to indicate those.

I'm not quite sure if it should actually search through archived repo's though?

Before:

After:

[codecov-commenter]

Codecov Report

Merging #17817 (cc87d91) into main (371ebce) will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main   #17817      +/-   ##
==========================================
+ Coverage   45.54%   45.55%   +0.01%     
==========================================
  Files         808      808              
  Lines       90049    90049              
==========================================
+ Hits        41009    41022      +13     
+ Misses      42487    42473      -14     
- Partials     6553     6554       +1     

Impacted Files	Coverage Δ
modules/charset/charset.go	71.71% <0.00%> (-4.05%)	⬇️
modules/git/repo_base_nogogit.go	82.85% <0.00%> (-2.86%)	⬇️
modules/git/utils.go	68.05% <0.00%> (-2.78%)	⬇️
models/issue_comment.go	52.40% <0.00%> (-0.57%)	⬇️
services/pull/pull.go	42.19% <0.00%> (+0.40%)	⬆️
routers/api/v1/repo/pull.go	29.35% <0.00%> (+0.51%)	⬆️
modules/queue/queue_bytefifo.go	59.88% <0.00%> (+0.59%)	⬆️
modules/queue/queue_disk_channel.go	62.72% <0.00%> (+1.77%)	⬆️
modules/queue/workerpool.go	53.43% <0.00%> (+5.72%)	⬆️

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[silverwind]

I'm not quite sure if it should actually search through archived repo's though?

I think its helpful to also search achived ones.

[lafriks]

I'm not quite sure if it should actually search through archived repo's though?

It's useful but could be improved to have option to exclude them from search results. Also would be cool for archived repo results to show after normal repo results (using priority weights)

[lunny]

I'm not quite sure if it should actually search through archived repo's though?

It's useful but could be improved to have option to exclude them from search results. Also would be cool for archived repo results to show after normal repo results (using priority weights)

These could be another PR. :)