Web: New sidebar goes offscreen when announcement banner is visible

Description

Environment: community-daily in Firefox on Mac

Repro steps:
1. Have a banner appear in the app by either:

  • Turning it on from the system console

  • Being on a community server when it updates to a new version

  • Being on a server without email notifications and with the preview mode banner enabled
    2. Enable the new channel sidebar
    3. Ensure you have enough channels in the sidebar for a scroll bar to appear

Observed: The bottom channel will be pushed off screen and cannot be scrolled to. The More Unreads indicator at the bottom of the sidebar will also be off screen.
Expected: You can scroll to view every channel in the sidebar and the More Unreads indicator is always on screen.

QA Test Steps

See description

Mana

None

Assignee

Devin Binnie

QA Assignee

Jelena Gilliam

Reporter

Harrison Healey

Epic Link

None

Fix versions

Mattermost Team

Apps

Sprint

None

Labels

QA Testing Areas

LHS

GitHub Issue

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Components

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Severity

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