First Release MobaXTauri

refactor(frontend): clean up codebase and modularize sidebar component

- Remove duplicate state functions and debug console logs in useSessionStore
- Fix typescript 'any' types in Sidebar and App context menu handlers
- Extract duplicate light/dark theme objects into top-level constants in Terminal
- Replace window.prompt dialogs with a themed custom PromptModal component
- Dynamically inject and display the package version in TitleBar using Vite define
- Refactor Sidebar component by modularizing it into sub-components (SessionsTab, SnippetsTab, SessionItem)