feat: source subscribe

[capJavert]

Changes

Describe what this PR does

• [x] add option to subscribe to source
• [x] api implementation https://github.com/dailydotdev/daily-api/pull/1739
• [x] from source page
• [x] from feed card
• [x] from post page/modal

Available on preview

TODO

• [x] pending thread resolution for subscribe in post sidebar

Events

Did you introduce any new tracking events? Don't forget to update the Analytics Taxonomy sheet

Log the new/changed events below:

Type	event_name	value
Change/New	event name	extra: { ... }

Please make sure existing components are not breaking/affected by this PR

Manual Testing

On those affected packages:

• [x] Have you done sanity checks in the webapp?
• [x] Have you done sanity checks in the extension?
• [x] Does this not break anything in companion?

Did you test the modified components media queries?

• [x] MobileL (420px)
• [x] Tablet (656px)
• [x] Laptop (1020px)

Did you test on actual mobile devices?

• [ ] iOS (Chrome and Safari)
• [ ] Android

AS-154 #done

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Name	Status	Preview	Comments	Updated (UTC)
daily-webapp	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 11, 2024 2:45pm

1 Ignored Deployment

Name	Status	Preview	Comments	Updated (UTC)
storybook	⬜️ Ignored (Inspect)			Mar 11, 2024 2:45pm