fix: File uploads should only be allowed for room members

[MartinSchoeler]

Proposed changes (including videos or screenshots)

Currently non channel members can drag and drop files into a channel they do not belong, this PR fixes that

Issue(s)

CORE-205

[dionisio-bot]

Looks like this PR is ready to merge! 🎉
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[changeset-bot]

🦋 Changeset detected

Latest commit: aee2cd6

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 32 packages

Name	Type
@rocket.chat/meteor	Patch
@rocket.chat/core-typings	Patch
@rocket.chat/rest-typings	Patch
@rocket.chat/apps	Patch
@rocket.chat/core-services	Patch
@rocket.chat/cron	Patch
@rocket.chat/fuselage-ui-kit	Patch
@rocket.chat/gazzodown	Patch
@rocket.chat/livechat	Patch
@rocket.chat/model-typings	Patch
@rocket.chat/ui-contexts	Patch
@rocket.chat/account-service	Patch
@rocket.chat/authorization-service	Patch
@rocket.chat/ddp-streamer	Patch
@rocket.chat/omnichannel-transcript	Patch
@rocket.chat/presence-service	Patch
@rocket.chat/queue-worker	Patch
@rocket.chat/stream-hub-service	Patch
@rocket.chat/api-client	Patch
@rocket.chat/ddp-client	Patch
@rocket.chat/license	Patch
@rocket.chat/omnichannel-services	Patch
@rocket.chat/pdf-worker	Patch
@rocket.chat/presence	Patch
rocketchat-services	Patch
@rocket.chat/uikit-playground	Patch
@rocket.chat/models	Patch
@rocket.chat/ui-avatar	Patch
@rocket.chat/ui-client	Patch
@rocket.chat/ui-video-conf	Patch
@rocket.chat/web-ui-registration	Patch
@rocket.chat/instance-status	Patch

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Click here if you're a maintainer who wants to add another changeset to this PR

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 59.39%. Comparing base (c7bdb14) to head (aee2cd6).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #32940      +/-   ##
===========================================
- Coverage    59.39%   59.39%   -0.01%     
===========================================
  Files         2541     2541              
  Lines        63180    63179       -1     
  Branches     14221    14220       -1     
===========================================
- Hits         37528    37527       -1     
  Misses       22936    22936              
  Partials      2716     2716              

Flag	Coverage Δ
unit	76.02% <ø> (ø)

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[dougfabris]

This is such a complete work, congrats on that!