feat: Bring back previous announcement style

[dougfabris]

Proposed changes (including videos or screenshots)

Important

This change is under feature preview

After trying a new approach in the announcement for rooms, the design team decided to bring back the previous style in the enhanced navigation feature preview

Issue(s)

Steps to test or reproduce

• Enable the Enhanced Navigation Experience feature preview
• Create a room
• Add a announcement
• Check the announcement banner next to the room header

Further comments

SIDE2-17

[dionisio-bot]

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[changeset-bot]

🦋 Changeset detected

Latest commit: 73d02b5

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

This PR includes changesets to release 36 packages

Name	Type
@rocket.chat/ui-client	Major
@rocket.chat/meteor	Minor
@rocket.chat/gazzodown	Major
@rocket.chat/ui-voip	Major
@rocket.chat/web-ui-registration	Major
@rocket.chat/fuselage-ui-kit	Major
@rocket.chat/livechat	Patch
@rocket.chat/uikit-playground	Patch
@rocket.chat/core-typings	Minor
@rocket.chat/rest-typings	Minor
@rocket.chat/api-client	Patch
@rocket.chat/apps	Patch
@rocket.chat/core-services	Patch
@rocket.chat/cron	Patch
@rocket.chat/ddp-client	Patch
@rocket.chat/freeswitch	Patch
@rocket.chat/model-typings	Patch
@rocket.chat/ui-contexts	Major
@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/license	Patch
@rocket.chat/omnichannel-services	Patch
@rocket.chat/pdf-worker	Patch
@rocket.chat/presence	Patch
rocketchat-services	Patch
@rocket.chat/models	Patch
@rocket.chat/network-broker	Patch
@rocket.chat/mock-providers	Patch
@rocket.chat/ui-avatar	Major
@rocket.chat/ui-video-conf	Major
@rocket.chat/instance-status	Patch

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[github-actions]

PR Preview Action v1.6.0
🚀 View preview at https://RocketChat.github.io/Rocket.Chat/pr-preview/pr-35672/
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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 59.63%. Comparing base (a486016) to head (73d02b5).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #35672      +/-   ##
===========================================
+ Coverage    59.62%   59.63%   +0.01%     
===========================================
  Files         2830     2832       +2     
  Lines        68297    68299       +2     
  Branches     15134    15130       -4     
===========================================
+ Hits         40719    40732      +13     
+ Misses       24969    24958      -11     
  Partials      2609     2609              

Flag	Coverage Δ
unit	75.61% <100.00%> (+0.01%)	⬆️

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