feat(ws): Notebooks v2 Create Workspace Kind/ Creation method

[thaorell]

This PR encapsulates a Create Workspace Kind Wizard and its first step for the user to select the creation method

• Method 1: Manual input by entering form inputs
• Method 2: Upload a yaml file

closes: #349
screencast-localhost_9000-2025_05_20-16_14_04.webm

[google-oss-prow]

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[paulovmr]

/ok-to-test

[paulovmr]

Hi @thaorell , thanks for the PR!

@jenny-s51 This first step of the wizard introduces a "new concept" for the UI, if you give it a a try and share your opinion, it would really help us.

IMO, we should keep the Create Workspace Kind button commented during the development of this epic, until the whole wizard is done. The reviewers can access the http://localhost:9000/workspacekinds/create URL directly to test it, or uncomment the button locally if they wish.

[paulovmr]

@thaorell The way to add the creation button besides the filter is changing in the Workspaces UI, please consider using the same approach here. The last step of this change is on #364 by @jenny-s51 , which is about to be merged.