Add support for single sign on configuration

[simonireilly]

Since I now use SSO everyday, it has become required for this to be supported :+1:

• Readme has been updated with requirements for SSO support.
• Tests updated
• Tested locally, and works for me :+1:

Enhancements

• Account, and account alias should be shown in the toolbar for ease of use.
• Possible redirect sso sign in with auth fails, but configuration must first be validated.

[codecov[bot]]

Codecov Report

Merging #150 (6c2ab43) into main (3368540) will increase coverage by 0.15%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #150      +/-   ##
==========================================
+ Coverage   89.76%   89.92%   +0.15%     
==========================================
  Files          10       10              
  Lines         254      258       +4     
  Branches       33       33              
==========================================
+ Hits          228      232       +4     
  Misses         26       26              

Impacted Files	Coverage Δ
src/pages/credentials/forms/profile.tsx	78.94% <100.00%> (+1.16%)	:arrow_up:
src/utils/aws/accounts/config.ts	100.00% <100.00%> (ø)
src/utils/aws/credentials/index.ts	89.47% <100.00%> (ø)

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