chore: Fixed broken link (#216)

### Description

Hi! I fixed a broken GitHub link in `Identicon.tsx` pointing to
MetaMask's `icon-factory`. The old `.js` path has been updated to `.ts`
to reflect the current file structure in their repo.

### Tested

Manual check — verified the updated URL points to the correct file and
line in MetaMask's GitHub repo.

### Checklist before requesting a review

- [x] I have performed a self-review of my own code  
- [ ] I have added unit-tests that prove my fix is effective or that my
feature works
- [x] The PR title follows the
[conventions](https://www.notion.so/Git-Branching-and-Commit-Message-Conventions-18f66f7d06444cfcbac5725ffbc7c04a?pvs=4#9355048863c549ef92fe210a8a1298aa)
- [ ] I have run the [regression
tests](https://www.notion.so/Mento-Web-App-Regression-Tests-37bd43a7da8d4e38b65993320a33d557)
- [ ] The Smoke Test Run is passed ([how to check the Smoke Test Run job
result](https://www.notion.so/mentolabs/How-to-analyze-the-Smoke-Test-Run-1b6a2148cc5c80ec8834f2dd97491680))

Co-authored-by: chapati <philip.paetz@me.com>

Author: cypherpepe

src/components/Identicon.tsx

@@ -8,7 +8,7 @@ type Props = {
   styles?: CSSProperties
 }
 
-// This should match metamask: https://github.com/MetaMask/metamask-extension/blob/master/ui/helpers/utils/icon-factory.js#L84
+// This should match metamask: https://github.com/MetaMask/metamask-extension/blob/master/ui/helpers/utils/icon-factory.ts#L84
 function addressToSeed(address: string) {
   const addrStub = normalizeAddress(address).slice(2, 10)
   return parseInt(addrStub, 16)