Migrate to tauri 2.0

[girish946]

This pull request introduces significant updates to the Tauri application setup, build configuration, and code structure to modernize the project, transition to Tauri v2, and simplify both the Rust and JavaScript codebases. The changes streamline dependency management, update build workflows, and refactor the Rust backend to use a library-based approach. Additionally, the frontend JavaScript is simplified to a minimal example.

Build and Dependency Updates:

• Migrated the Tauri app and its dependencies to version 2, updating Cargo.toml, tauri.conf.json, and related build scripts. The project now directly depends on the liblitho Rust crate for device operations instead of the external litho binary. [1] [2] [3]
• Updated the GitHub Actions workflow to use Tauri v1 action, Ubuntu 22.04, and improved caching and dependency installation. The workflow now triggers on both push and pull request events.

Codebase Refactoring:

• Replaced the custom Rust logic in src-tauri/src/main.rs with a call to lithographer_lib::run(), delegating all application logic to the library crate and simplifying the entry point.
• Drastically simplified the frontend JavaScript in src/main.js to a minimal Tauri command invocation example, removing all device selection and flashing logic.

Configuration and Metadata Improvements:

• Updated project metadata including version, description, and author in Cargo.toml and tauri.conf.json. Added a new package.json for the frontend. [1] [2] [3]
• Added a default capability JSON for Tauri v2 plugin permissions and improved .gitignore to exclude generated schemas. [1] [2]

Summary of Key Changes:

Build System & Dependencies

• Migrated to Tauri v2, updated Rust and JS dependencies, and switched to using the liblitho crate for device operations. [1] [2]
• Overhauled the GitHub Actions workflow for improved compatibility and build reliability.

Codebase Refactoring

• Replaced the Rust application entry point with a call to lithographer_lib::run(), offloading logic to a library crate.
• Simplified the frontend JavaScript to a basic Tauri command example, removing complex device and flashing logic.

Configuration & Metadata

• Updated application metadata and configuration files for Tauri v2 and new build conventions. [1] [2]
• Added Tauri v2 capability configuration and improved .gitignore for generated files. [1] [2]