Implement filters for repositories based on stars and activity

[Kalpavruksha]

Added filters for stars and last activity to the repository list.Fixes #2615

Added

• filter repositories by minimum stars
• filter repositories by last activity
• works with existing language filter
• shows message when no repositories match filters

Implementation

Used Vue computed property to dynamically filter repositories based on:

• stars count
• last modified date

Kept implementation minimal as requested in the issue.

[vercel]

@Kalpavruksha is attempting to deploy a commit to the DeepSource Team on Vercel.

A member of the Team first needs to authorize it.

[Kalpavruksha]

Fixes #2615

Added filters for:
• minimum stars
• last activity

Filtering is applied dynamically using Vue computed property.