Endpoint list: Show logged in user's username and whether they're an admin or not.

[KlapTrap]

fixes #2324

[cfdreddbot]

Hey KlapTrap!

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[codecov]

Codecov Report

Merging #2827 into v2-master will increase coverage by 0.01%.
The diff coverage is 84.21%.

@@              Coverage Diff              @@
##           v2-master    #2827      +/-   ##
=============================================
+ Coverage      71.29%   71.31%   +0.01%     
=============================================
  Files            604      605       +1     
  Lines          25834    25872      +38     
  Branches        5853     5865      +12     
=============================================
+ Hits           18419    18451      +32     
- Misses          7415     7421       +6

[richard-cox]

Two small changes, worth a quick re-review

• Used the same admin/not admin indicator as in the multi cf card. Also applied this to the cf summary card. For metrics endpoints just show a -
• Fixed sort when there's metrics endpoints without a user param

[nwmac]

LGTM