fix: search functionality in Importer page

[felipe-rod123]

Proposed changes (including videos or screenshots)

Currently, the importer page lacks a search functionality, making it difficult for users to locate specific users, channels, or messages to be imported.
If the owner wants to search for a specific user or channel, it doesn’t have a easy way to do it, he will have to manually search in the list.

Issue(s)

WM-121

Steps to test or reproduce

Admin > Workspace > Import > Import New File > Import

Further comments

Branch from: chore: Message count is not changing after removing channel selection #30799

[changeset-bot]

🦋 Changeset detected

Latest commit: 4e52a23

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

This PR includes changesets to release 30 packages

Name	Type
@rocket.chat/meteor	Patch
@rocket.chat/core-typings	Patch
@rocket.chat/core-services	Patch
@rocket.chat/cron	Patch
@rocket.chat/gazzodown	Patch
@rocket.chat/livechat	Patch
@rocket.chat/model-typings	Patch
@rocket.chat/rest-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/license	Patch
@rocket.chat/omnichannel-services	Patch
@rocket.chat/pdf-worker	Patch
@rocket.chat/presence	Patch
rocketchat-services	Patch
@rocket.chat/fuselage-ui-kit	Patch
@rocket.chat/models	Patch
@rocket.chat/ddp-client	Patch
@rocket.chat/ui-client	Patch
@rocket.chat/ui-video-conf	Patch
@rocket.chat/uikit-playground	Patch
@rocket.chat/web-ui-registration	Patch
@rocket.chat/instance-status	Patch

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[codecov]

Codecov Report

Merging #31004 (4e52a23) into develop (157f8f4) will increase coverage by 1.07%.
The diff coverage is 65.90%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #31004      +/-   ##
===========================================
+ Coverage    56.72%   57.79%   +1.07%     
===========================================
  Files          883     1754     +871     
  Lines        19990    33648   +13658     
  Branches      3689     6878    +3189     
===========================================
+ Hits         11340    19448    +8108     
- Misses        7956    12686    +4730     
- Partials       694     1514     +820     

Flag	Coverage Δ
e2e	51.00% <65.90%> (+8.61%)	⬆️
unit	75.53% <ø> (ø)

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[hugocostadev]

I think that this branch was created with the base chore/fix-importer-messages-count instead of develop , change this, please, otherwise the chore/fix-importer-messages-count branch is going to be merged with that