actop 1.7.0

Added

• --theme flag to select Textual app theme at launch (UI chrome: header,
  footer, borders, text colors). 8 curated built-in themes: textual-dark
  (default, unchanged), textual-light, nord, dracula, tokyo-night,
  monokai, gruvbox, catppuccin-mocha. Orthogonal to --palette (chart
  gradient) — any theme works with any palette.
• t key binding to cycle through themes live during a session with a toast
  notification on each change. Wraps around from the last theme back to the first.

Changed

• Process table toggle moved from t → p (processes).
• Pause/resume moved from p → Space (universal pause key).