ui: updating references to status.redhat.com (PROJQUAY-6654)

[bcaton85]

Updates references from status.quay.io to status.redhat.com. Uses responses based on the status page API documentation.

Gotchas:

• The 500.html uses an imported status page script to display Quay status. Updating the page ID to use status.redhat.com causes the UI to display the overall RedHat status rather than specifically the Quay UI status.
• There's the assumption that the incidents field contains a components parameter, like the scheduled_maintenances field.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (2ab7dc2) 70.70% compared to head (7e87b95) 70.71%.
Report is 13 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2645   +/-   ##
=======================================
  Coverage   70.70%   70.71%           
=======================================
  Files         435      435           
  Lines       40107    40109    +2     
  Branches     5221     5222    +1     
=======================================
+ Hits        28359    28362    +3     
- Misses      10095    10097    +2     
+ Partials     1653     1650    -3     

Flag	Coverage Δ
unit	70.71% <ø> (+<0.01%)	⬆️

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