fix(lsp): update URI handling for non-templ files for references

[tris203]

Closes #893

This took far too long to find but seems to resolve the issue for me

[tris203]

I think this is ready for a review

[joerdav]

Great thanks so much for the contribution! I will test this out, I also think that this could benefit from an additional test in https://github.com/a-h/templ/blob/main/cmd/templ/lspcmd/lsp_test.go if you have time? @a-h has built a nice test framework for unit testing the LSP.

If you don't have time let me know and I can pick that up.

[tris203]

Great thanks so much for the contribution! I will test this out, I also think that this could benefit from an additional test in main/cmd/templ/lspcmd/lsp_test.go if you have time? @a-h has built a nice test framework for unit testing the LSP.

If you don't have time let me know and I can pick that up.

I have added a test @joerdav
I tried to integrate it in the same style as the others, let me know if there is anything you want changed

[joerdav]

I've just added one more for a reference within a templ file, but now I think this is good to go. Thanks for the contribution!