v1.7.5-rc.1

Full Changelog

• Upgrade to React SDK 3.3.0-rc.1 and JS SDK 8.2.0-rc.1
• Update from Weblate
  #15045
• Document .well-known E2EE secure backup setting
  #15003
• Add docs for communities v2 prototyping feature flag
  #15013
• Update links in README.md to point to Element
  #14973
• Make kabyle translation available
  #15027
• Change Riot to Element in readme
  #15016
• Update links to element in the readme
  #15014
• Link to Element in F-Droid as well
  #15002
• Settings v3: Update documentation and configs for new feature flag behaviour
  #14986
• Update jitsi.md with Element Android details
  #14952
• TypeScript: enable es2019 lib for newer definitions
  #14983
• Add reaction preview labs flags to develop
  #14979
• Document new labs tweaks
  #14958