Add sign-in check for photo rating in feed

[rihabbelmekki]

This PR introduces a Toast notification in the FeedScreen to enhance user feedback. When an unauthenticated user (with an empty userEmail) attempts to rate a photo, a Toast message is displayed prompting them to sign in. Changes:

• Added a Toast notification in the FeedScreen that informs users to sign in when trying to rate photos without being authenticated.

Reason: This change improves the user experience by providing immediate feedback when users perform actions that require authentication. It ensures users understand the need to sign in to access certain features.

Related Issues: Closes Issue #149

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
71.4% Coverage on New Code
0.0% Duplication on New Code

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