Contextual Mini Catalog

[kahboom]

Add support for a "mini catalog" that loads a list of steps. The idea is that when a user wants to add a new step to an existing step, they will click a + button that loads a searchable mini catalog of steps compatible with it. The user can then select the step, which will automatically be appended to the existing step.

Steps

• [x] Update apiService to use new endpoint
• [x] Add component for Contextual Mini Catalog
• [x] Add handler for selecting steps
• [x] Verify validation is in tact, add tests
• [x] Add search

Depends on https://github.com/KaotoIO/kaoto-backend/issues/42 and either #218 or #219 for the final implementation, but development can start before then.

[Delawen]

Reopening because we still need to add new endpoint (working on it)

[Delawen]

https://github.com/KaotoIO/kaoto-backend/issues/42