fix: set aria-current using complete URL (#5377)

[niatalwalkar]

Description

Related Issue: #5377.

This PR updates the local Link component so that aria-current="page" is set based on the full URL.

Steps for reproduction

1. Previously, links such as /path?tag=bla were not marked as current.
2. Now, if the full URL (path + query params) matches, the link gets aria-current="page".

Code Review

• hi @kof, I need you to do
  • conceptual review (architecture, feature-correctness)
  • detailed review (read every line)
  • test it on preview

Before requesting a review

• made a self-review
• added inline comments where things may be not obvious (the "why", not "what")

Before merging

• tested locally and on preview environment (preview dev login: 0000)
• updated test cases document
• added tests
• if any new env variables are added, added them to .env file

[kof]

@TrySound do you know why react router isn't doing it that way? looks like by doing this we are fixing react router.