fix: Updated feedback.js to accept only non-zero ratings

[NidhiTornekar]

Added additional functionality to accept only non-zero ratings in the "Rate our Service" page.

Title and Issue number

Title : Accepts zero star ratings

Issue No. : 745

Code Stack : Javascript

Close apu52#745

Description

Added additional functionality to accept only non-zero ratings in the "Rate our Service" page.
Also, made sure that after successful submission, the ratings and feedback are set back to default settings(that is zero stars and empty feedback)

Video/Screenshots (mandatory)

Type of PR

• Bug fix
• Feature enhancement
• Documentation update
• Other (specify): _______________

Checklist:

• I have performed a self-review of my code.
• I have commented my code, particularly in hard-to-understand areas.
• I have tested the changes thoroughly before submitting this pull request.
• I have provided relevant issue numbers, screenshots, and videos after making the changes.
• I have gone through the contributing.md file before contributing

Additional context:

##Are you contributing under any Open-source programme?

Contributing under GSSOC 2024.
Please assign corresponding level tag also.