Prevent layout shift admin page

[awlFCCamp]

Fixes #1645

What changes did you make and why did you make them?

• made changes in auth.js to render error container always, prevent layout shifting
• set height in the style sheet for error messages with multi lines

Screenshots of Proposed Changes Of The Website (if any, please do not screen shot code changes)

Visuals before changes are applied

Visuals after changes are applied

[github-actions]

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git checkout -b awlFCCamp-prevent-layout-shift-admin-page development
git pull https://github.com/awlFCCamp/VRMS.git prevent-layout-shift-admin-page