fix: incorrect expr for server and repo-server telemetry in Grafana dashboard

[pandvan]

This follows and correct #21098: fix was correct, but done in wrong panels.
Now all panels with telemetry data make use of service name as its job name for the filter.
It also remove some duplicate panel IDs.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.03%. Comparing base (faf0073) to head (ad0c920).
Report is 5 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #22659      +/-   ##
==========================================
+ Coverage   55.99%   56.03%   +0.03%     
==========================================
  Files         343      343              
  Lines       57536    57535       -1     
==========================================
+ Hits        32219    32239      +20     
+ Misses      22668    22657      -11     
+ Partials     2649     2639      -10     

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[ranakan19]

Looks good to me! Thanks for the fix!