chore: fix playwright js test script

fixed ouro->our in io-testing.md

Test output in go is in this format.
<img width="292" alt="Screenshot 2024-01-24 at 9 51 42 PM"
src="https://github.com/codedamn/teach.codedamn.com/assets/109629956/c9c1a6a7-49b6-4580-bc6a-49efa0de509f">
therefore we should be checking for `--- PASS` instead of `PASS`
if we do `PASS` then all the strings that have pass string will return
`true` which is wrong

`if (output === undefined) return` when its not actual testCase
structure then output is `undefined`
Idk how that works, but adding this solves the error.

`rm go.mod` removing go.mod before `node testoutput.js` because if
testoutput.js fails all the test files won't get deleted and we need to
manually remove go.mod.

- added docs for vue labs as well
- docs links updated in `/docs/technologies` page

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Co-authored-by: Pranav <pranav.techiegeek@gmail.com>