feat: combine form repo settings page #9167

[reginapizza]

Closes #9167

Checklist:

• Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this does not need to be in the release notes.
• The title of the PR states what changed and the related issues number (used for the release note).
• I've included "Closes [ISSUE #]" or "Fixes [ISSUE #]" in the description to automatically close the associated issue.
• I've updated both the CLI and UI to expose my feature, or I plan to submit a second PR with them.
• Does this PR require documentation updates? (maybe?)
• I've updated documentation as required by this PR.
• Optional. My organization is added to USERS.md.
• I have signed off all my commits as required by DCO
• I have written unit and/or e2e tests for my change. PRs without these are unlikely to be merged.
• My build is green (troubleshooting builds).

This PR will combine the three different methods of connecting repos into one sliding panel with a dropdown to select the connection method.

Video demonstrating new UX flow with HTTPS as an example:

repoSettingsRedesign1.mp4

[codecov]

Codecov Report

Merging #9374 (e82f4a8) into master (6307b73) will decrease coverage by 0.36%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #9374      +/-   ##
==========================================
- Coverage   46.19%   45.83%   -0.37%     
==========================================
  Files         218      222       +4     
  Lines       25917    26405     +488     
==========================================
+ Hits        11972    12102     +130     
- Misses      12290    12652     +362     
+ Partials     1655     1651       -4     

Impacted Files	Coverage Δ
util/argo/managedfields/managed_fields.go	42.04% <0.00%> (-32.96%)	⬇️
util/helm/helm.go	41.89% <0.00%> (-19.45%)	⬇️
...licationset/generators/generator_spec_processor.go	51.66% <0.00%> (-5.91%)	⬇️
applicationset/generators/pull_request.go	39.13% <0.00%> (-3.73%)	⬇️
util/helm/cmd.go	25.29% <0.00%> (-3.53%)	⬇️
applicationset/services/scm_provider/gitlab.go	74.19% <0.00%> (-2.16%)	⬇️
util/session/sessionmanager.go	67.43% <0.00%> (-1.32%)	⬇️
util/cert/cert.go	81.81% <0.00%> (-0.59%)	⬇️
server/application/application.go	31.40% <0.00%> (-0.43%)	⬇️
controller/state.go	73.64% <0.00%> (-0.26%)	⬇️
... and 26 more

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[ciiay]

It looks great to me! Only left a few small comments. Well done 👍

[ciiay]

LGTM

[keithchong]

For this PR, test all three connection types and click on the Connect button with the initial form unchanged.

[keithchong]

LGTM

[keithchong]

Hi @rbreeze , as an FYI, we've spent some cycles reviewing and testing this, so we'd like to merge this today. If you see something we've missed, we can address them in a separate PR.