[desktop] Editor improvements

[Codex]

Rename field was invoking platform text assists that interfered with quick renames in the editor header.

• Rename input: Set autoComplete, autoCorrect, autoCapitalize to "off" and spellCheck to false on the title input to prevent unwanted suggestions/corrections while renaming files.

Example:

<input
  autoComplete="off"
  autoCorrect="off"
  autoCapitalize="off"
  spellCheck={false}
/>