feat: session manger (#867)

* feat: init session manger

* feat: persist selected app to localStorage

- Save app selection when switching providers
- Restore last selected app on page load

* feat: persist current view to localStorage

- Save view selection when switching tabs
- Restore last selected view on page load

* styles: update ui

* feat: Improve macOS Terminal activation and refactor Kitty launch to use  command with user's default shell.

* fix: session view

* feat: toc

* feat: Implement FlexSearch for improved session search functionality.

* feat: Redesign session manager search and filter UI for a more compact and dynamic experience.

* refactor: modularize session manager by extracting components and utility functions into dedicated files.

* feat: Enhance session terminal launching with support for iTerm2, Ghostty, WezTerm, and Alacritty, including UI and custom configuration options.

* feat: Conditionally render terminal selection and resume session buttons only on macOS.

src-tauri/src/lib.rs

@@ -20,6 +20,7 @@ mod prompt_files;
 mod provider;
 mod provider_defaults;
 mod proxy;
+mod session_manager;
 mod services;
 mod settings;
 mod store;
@@ -933,6 +934,10 @@ pub fn run() {
             commands::stream_check_all_providers,
             commands::get_stream_check_config,
             commands::save_stream_check_config,
+            // Session manager
+            commands::list_sessions,
+            commands::get_session_messages,
+            commands::launch_session_terminal,
             commands::get_tool_versions,
             // Provider terminal
             commands::open_provider_terminal,