AWS EC2 instances

[dlabrecq]

Stub-out instances tab

https://issues.redhat.com/browse/COST-4855

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 59.15493% with 29 lines in your changes are missing coverage. Please review.

Project coverage is 65.69%. Comparing base (2187fd4) to head (7ce4786).

Files	Patch %	Lines
...tes/utils/computedReport/getComputedReportItems.ts	63.33%	22 Missing ⚠️
src/routes/utils/groupBy.ts	12.50%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3822      +/-   ##
==========================================
- Coverage   65.75%   65.69%   -0.07%     
==========================================
  Files         514      514              
  Lines        9956     9974      +18     
  Branches     2341     2193     -148     
==========================================
+ Hits         6547     6552       +5     
- Misses       3165     3418     +253     
+ Partials      244        4     -240     

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