Properly specify lang tags

[PerchunPak]

#261 attempted to introduce language tags, but that did not work for me (in NeoVim, it did not highlight code blocks as expected) and raised a bunch of deprecation warnings by Lix. This introduces them properly (and btw please consider using nixfmt, it is already de-jure standart and adopted in nixpkgs)

warning: Whitespace calculations for indentation stripping in a multiline ''-string include the first line, so putting text on it will effectively disable all indentation stripping. To fix this, simply break the line right after the string starts. Use --extra-deprecated-features broken-string-indentation to silence this warning.
         at /nix/store/wxlsi86bzplwnfqvcaxmcc686prncn4n-source/hm-module/places.nix:502:85:
            501|
            502|           updateScript = pkgs.writeShellScript "zen-sessions-update-${profileName}" ''            # bash
               |                                                                                     ^
            503|             SESSIONS_FILE="${sessionsFile}"

[luisnquin]

Now it doesn't highlight the code blocks on my end. Lix shouldn't care about it.

[luisnquin]

Two options here:

1. Remove the language tags to avoid the Lix warnings.

2. Introduce nixfmt in this repository, although language tags will not work for me until I switch my editor extension.

[PerchunPak]

Now it doesn't highlight the code blocks on my end. Lix shouldn't care about it.

What are you using?

[luisnquin]

Now it doesn't highlight the code blocks on my end. Lix shouldn't care about it.

What are you using?

This extension

[PerchunPak]

Can you try https://github.com/nix-community/vscode-nix-ide? This is the LSP for Nix

[luisnquin]

Can you try nix-community/vscode-nix-ide? This is the LSP for Nix

I'm already using it

[PerchunPak]

You are using nil, which is IMO worse and has less features. Change nix.serverPath to nixd