Made Changes to Search Directory shifting DB Calls from frontend to backend. Changed and added support to accept alumni as year of study.

[shreyas-omkar]

Summary: What does this PR do?

All Database calls in frontend have been shifted to backend for added security.
Export multiple profile using email has been shifted to backend.
Created separate API endpoints for search using options and for search using the search bar.
Handled year of study to be alumni which initially could not be done and stored as NULL in the database.

Which issue(s) this PR fixes:

Changes Made

Describe the changes you've made in this PR:

• Feature implementation
• Bug fix
• Documentation update
• Code refactoring
• Configuration changes
• Other (please specify)

Type of Change

• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Documentation update
• Performance improvement
• Code cleanup or refactor

How Has This Been Tested?

Describe the tests you ran:

• Unit tests
• Integration tests
• Manual tests
• Other (please specify)

Please describe the test cases and expected behavior:

1. Search Directory works as expected.
2. Shouldn't find any DB URLs in frontend or in Network Tab regrading search.

Screenshots (if applicable)

Dependencies

Documentation

• I have updated the documentation accordingly
• Documentation update is not required

Comments:

Reviewer Notes

[netlify]

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