fix: Modals opened by apps won't close when executeViewCloseHandler is not implemented

[KevLehman]

rocketchat.atlassian.net/browse/CORE-401

Proposed changes (including videos or screenshots)

Issue(s)

Steps to test or reproduce

Further comments

Fixes an issue with some apps that didn't implement executeViewCloseHandler. This causes opened modals to be open forever on UI. This is because when the UI attempts to close it, it calls the aforementioned handler, and since it didn't exist, apps engine errored out.

This returned an empty response to the UI, which ignored the response and continued to show the view.

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[changeset-bot]

🦋 Changeset detected

Latest commit: 9964572

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/apps	Patch
@rocket.chat/core-services	Patch
@rocket.chat/core-typings	Patch
@rocket.chat/fuselage-ui-kit	Patch
@rocket.chat/rest-typings	Patch
@rocket.chat/ddp-streamer	Patch
@rocket.chat/presence	Patch
rocketchat-services	Patch
@rocket.chat/account-service	Patch
@rocket.chat/authorization-service	Patch
@rocket.chat/omnichannel-transcript	Patch
@rocket.chat/presence-service	Patch
@rocket.chat/queue-worker	Patch
@rocket.chat/stream-hub-service	Patch
@rocket.chat/omnichannel-services	Patch
@rocket.chat/cron	Patch
@rocket.chat/gazzodown	Patch
@rocket.chat/livechat	Patch
@rocket.chat/model-typings	Patch
@rocket.chat/ui-contexts	Patch
@rocket.chat/api-client	Patch
@rocket.chat/license	Patch
@rocket.chat/pdf-worker	Patch
@rocket.chat/uikit-playground	Patch
@rocket.chat/ddp-client	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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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.32%. Comparing base (048a977) to head (60ee12f).
Report is 1 commits behind head on release-6.8.0.

❗ Current head 60ee12f differs from pull request most recent head 9964572. Consider uploading reports for the commit 9964572 to get more accurate results

Additional details and impacted files

@@                Coverage Diff                @@
##           release-6.8.0   #32374      +/-   ##
=================================================
- Coverage          55.41%   54.32%   -1.09%     
=================================================
  Files               2370     2294      -76     
  Lines              52094    50991    -1103     
  Branches           10653    10442     -211     
=================================================
- Hits               28868    27701    -1167     
- Misses             20707    20832     +125     
+ Partials            2519     2458      -61     

Flag	Coverage Δ
e2e	52.65% <ø> (-2.06%)	⬇️
unit	75.37% <ø> (ø)

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[ggazzo]

What does this bump do? It seems to me that it's a fix, could you add a changeset explaining what it fixes? otherwise people won't know what was fixed