remove install method if pve-tool / addon & Improve dark mode initialization and modal UI #32 (#34)

* Add dark mode support across UI

Introduces DarkModeProvider and DarkModeToggle components for theme management. Updates all major UI components and pages to support dark mode styling using Tailwind CSS dark variants, improving accessibility and user experience for users preferring dark themes.

* Improve dark mode initialization and modal UI (#32)

Adds a script to layout.tsx to set dark mode before hydration, preventing UI flicker. Refactors DarkModeProvider to initialize theme and dark state after mount. Updates ScriptDetailModal for improved readability, consistent styling, and better handling of script status, install methods, and notes.

Author: MickLesk