feat(call): start 1-1 call from 'Talk to {person}' action

[Antreesy]

☑️ Resolves

• Fix 📍 Call from anywhere - Integration of calls into the avatar menu #15416

🖌️ UI Checklist

🖼️ Screenshots / Screencasts

Entry points:

Intermediate step (call here or in Talk) (🚧 WIP):

Call integration (🚧 WIP):

🏚️ Before	🏡 After
Screenshot before	Screenshot after

🚧 Tasks

• Lazy load (currently interceptor/trigger is ~9 kB, integration ~ 1.25 Mb
• Reduce size (where seems possible)
  • Light-weight versions of existing components?
• Limit PR changes to relevant
  • Split unrelated changes to pre-requisites
  • Split design / general components changes to pre-requisites
• Intermediate step:
  • atm ~ 300 kB, try native components first?
• Integration app:
  • Drag-n-drop
  • Drop some features (see light-weigth)
  • Open in separate window
    • full flex Talk or light-weight Talk?
  • Survive/reconnect after page-reload
    • local storage flag?

🏁 Checklist

• 🌏 Tested with different browsers / clients:
  • Chromium (Chrome / Edge / Opera / Brave)
  • Firefox
  • Safari
  • Talk Desktop
  • Integrations with Files sidebar and other apps
  • Not risky to browser differences / client
• 🖌️ Design was reviewed, approved or inspired by the design team
• ⛑️ Tests are included or not possible
• 📗 User documentation in https://github.com/nextcloud/documentation/tree/master/user_manual/talk has been updated or is not required

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🛠️ API Checklist

🚧 Tasks

• ...

🏁 Checklist

• ⛑️ Tests (unit and/or integration) are included or not possible
• 📘 API documentation in docs/ has been updated or is not required
• 🔖 Capability is added or not needed