added internship page

[falak412]

Issues Identification

Closes: #1152

i have added section for finding internships.

Summary

A brief description of what this pull request does and why it is needed.

Details

details about internships and also form for eligible students.

Types of Changes

Please check the boxes that apply

• [ ] Bugfix (non-breaking change that fixes an issue)
• [yes ] New feature (non-breaking change that adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Documentation update (Documentation content changed)
• [ ] Other (please describe):

Checklist

Please check the boxes that apply

• [yes ] My code follows the style guidelines of this project
• [yes ] I have performed a self-review of my own code
• [yes ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [yes ] My changes generate no new warnings
• [ yes ] My changes do not break the current system and pass all existing test cases
• [yes ] I have added tests that prove my fix is effective or that my feature works
• [ yes ] New and existing unit tests pass locally with my changes

Screenshots

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Additional Information

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[Apoorva57]

@falak412 the ui of the internship page does not match with the entire website, also the page is missing navbar and footer which makes it a deadpoint in website as people navigate back from the page. Kindly update the pr with changes mentioned.

[Apoorva57]

@falak412 since no response was received and the GSSoC-ext program has also ended, so we are closing this PR.