[RHOAIENG-7073] Fix for cancel on spawn a notebook server page

[jeff-phillips-18]

Closes: RHOAIENG-7073

Description

Cancel on the spawner page sends the user to / which, when the home page is enabled, is incorrect. It should send the user to '/enabled' when the home page is enabled.

How Has This Been Tested?

Tested locally and added an e2e test.

Test Impact

Should test cancel from the spawner page with and without the home page enabled.

Request review criteria:

• The developer has manually tested the changes and verified that the changes work
• Commits have been squashed into descriptive, self-contained units of work (e.g. 'WIP' and 'Implements feedback' style messages have been removed)
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has added tests or explained why testing cannot be added (unit or cypress tests for related changes)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

❗ No coverage uploaded for pull request base (main@f3927fd). Click here to learn what that means.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2807   +/-   ##
=======================================
  Coverage        ?   77.25%           
=======================================
  Files           ?     1072           
  Lines           ?    22418           
  Branches        ?     5667           
=======================================
  Hits            ?    17319           
  Misses          ?     5099           
  Partials        ?        0           

Files	Coverage Δ
.../notebookController/screens/server/SpawnerPage.tsx	60.92% <100.00%> (ø)

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[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

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