Added tools & updated hyprlock config

Changelog:
- Added packages: `emmet-language-server`, `gitleaks`, `trunk`
- Changed time format in `hyprlock` from 24-hour to 12-hour format
- Configured `emmet-language-server` for the `helix` editor

nixos/lsp.nix

@@ -16,5 +16,6 @@
     zls
     gopls
     delve
+    emmet-language-server
   ];  
 }