fix: comment toggle shortcut not working in environment variable editors

[amit-y11]

What is this PR about?

Fix Cmd+/ or Ctrl+/ comment toggle shortcut not working in environment variable editors (properties language mode).

CodeMirror's toggleComment command requires commentTokens metadata (via languageData) to know which syntax to use for commenting. The properties language mode from @codemirror/legacy-modes does not export this metadata, unlike yaml, shell, and json modes which all include it. This caused Ctrl+/ to silently fail in all editors using language="properties" including environment variable editors, volume content, and more.

The fix adds languageData: { commentTokens: { line: "#" } } to the properties stream parser definition in the shared CodeEditor component, enabling # line comments via Ctrl+/ across all properties-mode editors in the app.

Checklist

Before submitting this PR, please make sure that:

• You created a dedicated branch based on the canary branch.
• You have read the suggestions in the CONTRIBUTING.md file https://github.com/Dokploy/dokploy/blob/canary/CONTRIBUTING.md#pull-request
• You have tested this PR in your local instance. If you have not tested it yet, please do so before submitting. This helps avoid wasting maintainers' time reviewing code that has not been verified by you.

Issues related (if applicable)

closes #4402

Screenshots (if applicable)