[Epic] Initial homepage experience for embedding admins

[npretto]

Links

• product doc: Initial homepage experience for embedding admins
• eng doc: Initial homepage experience for embedding admins
• feature branch: embed-homepage / embed-homepage - ms1 PR #40382

Implementation Plan

MS1: #40382

MS 1 - Homepage without example dashboard -embed-homepage

Beta Give feedback

1. create ui for the full embedding homepage, without any logic #40251
   .Team/Embedding +1
   
2. add new settings for embedding homepage #40455
   .Team/Embedding +1
   
3. connect settings to the embed homepage and show it #40528
   .Team/Embedding +1
   
4. dismiss without feedback for the embedding homepage #40587
   .Team/Embedding +1
   
5. double check unit tests and e2es (I'm actually writing them as I go)
6. use List from metabase/ui #40638
   .Team/Embedding +1
   
7. set embedding-secret-key when embedding is enabled #40813
   .Team/Embedding +1
   

MS2: #41180

MS 2 - Add example dashboard reference

Beta Give feedback

1. dependency on [Epic] Seed new instances w/ an example dashboard #40066
2. connect the example dashboard id setting to the embedding homepage #41138
   .Team/Embedding +1
   

MS 3 - Dismiss with feedback - embed-homepage-ms3

Beta Give feedback

1. dependency on https://github.com/metabase/harbormaster/issues/4783
2. https://github.com/metabase/harbormaster/issues/4814
3. Feedback for the Embedding Homepage #40746
   .Team/Embedding no-backport visual +3
   
4. product-feedback endpoint #40974
   .Team/Embedding +1
   

MS4: #41990

MS 4 - Analytics + polishment - embed-homepage-milestone4

Beta Give feedback

1. add toast notification after the feedback #41575
   .Team/Embedding +1
   
2. add "Setup embedding" to the admin setup checklist #41638
   .Team/Embedding +1
   
3. use css modules instead of inline styles for cursor: default #41644
   .Team/Embedding +1
   
4. embedding homepage analytics #41725
   .Team/Embedding +1
   
5. fix modal submit sending data while button says skip #41784
   .Team/Embedding +1
   
6. Change utm tags for embedding homepage links #42042
   .Team/Embedding +1
   
7. add description to the checklist setup step #42200
   .Team/Embedding +1
   
8. [AFTER MERGING ON MASTER] snowplow ping about schema changes