ui: show repository autoprune tab only for repo write permission (PROJQUAY-6780)

[harishsurf]

Shows repository autoprune tab only when repository has write permissions

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.80%. Comparing base (be4edd0) to head (f7d627e).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2723   +/-   ##
=======================================
  Coverage   70.80%   70.80%           
=======================================
  Files         436      436           
  Lines       40579    40579           
  Branches     5286     5286           
=======================================
+ Hits        28730    28731    +1     
- Misses      10170    10172    +2     
+ Partials     1679     1676    -3     

Flag	Coverage Δ
unit	70.80% <ø> (+<0.01%)	⬆️

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[harishsurf]

/cherry-pick redhat-3.11

[openshift-cherrypick-robot]

@harishsurf: new pull request created: #2733

In response to this:

/cherry-pick redhat-3.11

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