Co-authored-by: Germain <germains@element.io>

Apologies if this means everyone has to `rm -rf node_modules`: react-ace
decided to turn some paths that were regular files into directories
and it turns out this really confuses yarn: https://github.com/securingsincity/react-ace/issues/1048

Bumps [node-fetch](https://github.com/node-fetch/node-fetch) from 2.6.6 to 2.6.7.
- [Release notes](https://github.com/node-fetch/node-fetch/releases)
- [Commits](https://github.com/node-fetch/node-fetch/compare/v2.6.6...v2.6.7

)

---
updated-dependencies:
- dependency-name: node-fetch
  dependency-type: indirect
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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [node-fetch](https://github.com/node-fetch/node-fetch) from 2.6.6 to 2.6.7.
- [Release notes](https://github.com/node-fetch/node-fetch/releases)
- [Commits](https://github.com/node-fetch/node-fetch/compare/v2.6.6...v2.6.7

)

---
updated-dependencies:
- dependency-name: node-fetch
  dependency-type: indirect
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Bumps [cached-path-relative](https://github.com/ashaffer/cached-path-relative) from 1.0.2 to 1.1.0.
- [Release notes](https://github.com/ashaffer/cached-path-relative/releases)
- [Commits](https://github.com/ashaffer/cached-path-relative/commits

)

---
updated-dependencies:
- dependency-name: cached-path-relative
  dependency-type: indirect
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Presumbaly casts left over from typescript migration.

Co-authored-by: Michael Telatynski <7t3chguy@gmail.com>

* Move polls handling to events-sdk & invent a multi-relation handler

Polls are now fully handled by the events-sdk instead of by the js-sdk.

The multi-relation handler (RelatedRelations) is primarily meant to handle unstable & stable support in polls when it becomes stable.

* update events-sdk for polls

* Update events-sdk for polls bugfix

* Update events-sdk for maintenance