Bug fix for mobile footer

[AnkitLakkapragada]

Summary

• Bug fix for mobile footer to ensure it is flush with the bottom of all mobile screens

Test Plan

• testing using different devices

Notes

Breaking Changes

• Database schema change (anything that changes Firestore collection structure)
• Other change that could cause problems (Detailed in notes)

[dti-github-bot]

[diff-counting] Significant lines: 1.

[github-actions]

Visit the preview URL for this PR (updated for commit 094237f):

https://cu-apts-staging--pr294-mobile-footer-s4uaj7l8.web.app

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[thuypham03]

This changed didn't fix the root problem of why footer is hanging. The problem is in css '.root', we set the body of the screen with height: min-height: calc(100vh - 120px - 94px); but the actual should just be min-height: calc(100vh - 94px);. Check this PR: #295