feat: Gateway: CRW-8927 - Simplify login in to the OCP cluster from t…

[vrubezhny]

…he Gateway plugin

This POC PR adds a possibility to authorize on...

• ...an OpenShift cluster via OpenShift OAuth Authenticator
• ...a Sandbox provisioned cluster via RedHat SSO Authenticator

POC Demo:

Openshift-Authentication-POC.mp4

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 854 lines in your changes missing coverage. Please review.
✅ Project coverage is 18.21%. Comparing base (71098f6) to head (54a861b).
⚠️ Report is 285 commits behind head on main.

Files with missing lines	Patch %	Lines
...ools/gateway/view/steps/DevSpacesServerStepView.kt	0.00%	231 Missing ⚠️
...evtools/gateway/auth/code/OpenShiftAuthCodeFlow.kt	0.00%	149 Missing ⚠️
...ateway/auth/session/OpenShiftAuthSessionManager.kt	0.00%	78 Missing ⚠️
...s/gateway/auth/session/RedHatAuthSessionManager.kt	0.00%	69 Missing ⚠️
...t/devtools/gateway/auth/code/RedHatAuthCodeFlow.kt	0.00%	67 Missing ⚠️
...gateway/auth/sandbox/SandboxClusterAuthProvider.kt	0.00%	51 Missing ⚠️
...evtools/gateway/auth/server/OAuthCallbackServer.kt	0.00%	32 Missing ⚠️
...redhat/devtools/gateway/auth/sandbox/SandboxApi.kt	0.00%	29 Missing ⚠️
.../redhat/devtools/gateway/auth/code/AuthCodeFlow.kt	0.00%	21 Missing ⚠️
...hat/devtools/gateway/auth/sandbox/SandboxModels.kt	0.00%	20 Missing ⚠️
... and 13 more

Additional details and impacted files

@@            Coverage Diff             @@
##            main     #247       +/-   ##
==========================================
+ Coverage   0.00%   18.21%   +18.21%     
==========================================
  Files          4       61       +57     
  Lines         26     2893     +2867     
  Branches       0      533      +533     
==========================================
+ Hits           0      527      +527     
- Misses        26     2292     +2266     
- Partials       0       74       +74     

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[vrubezhny]

A few changes made to the Authentication and Select Cluster Wizard:

• Auth via Username/password was added
• Radio buttons changed to Tabs to make it more compact
• The resulting token gets saved to Kube config not only for Auth via token, but also when authenticating via OpenshiftAuth or via Username/Password, if user checked the "Save config" option
• Token and Password fields are ****-masked by default now, a checkboxes were added to the according Tabs to make these fields turn visible, if user checked the "Show token/password" option

Here's a POC demo for Auth via Username/Password onto a local CRC cluster (+DevSpaces installed):

Username-Password-Authentication-POC.mp4