Closes #
## Description
<!-- Briefly describe what this PR does and why -->
I just couldn't get the script to execute properly in its current form.
I saw e.g.
```console
[[: 1989{#d[@]}: syntax error: invalid arithmetic operator (error token is "{#d[@]}")
```
when trying to run the script locally. (GNU bash, version
5.2.21(1)-release (x86_64-pc-linux-gnu)).
This uses a likely simpler bash script, but requires both grep and awk.
## Type of Change
- [ ] New module
- [x] Bug fix
- [ ] Feature/enhancement
- [ ] Documentation
- [ ] Other
## Module Information
<!-- Delete this section if not applicable -->
**Path:** `registry/coder/modules/kasmvnc`
**New version:** `v1.2.3`
**Breaking change:** [ ] Yes [x] No
## Testing & Validation
- [ ] Tests pass (`bun test`)
- [ ] Code formatted (`bun run fmt`)
- [ ] Changes tested locally
## Related Issues
<!-- Link related issues or write "None" if not applicable -->
---------
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Atif Ali <atif@coder.com>
Co-authored-by: DevCats <christofer@coder.com>
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