Update project packaging

[ryanlua]

Description

Completely update how Satchel is packaged and how the loader works.

Related Issues

Closes #96

Changes Made

This pull request introduces several improvements and refactors to the build system, project configuration, and UI code for the Satchel project. The most significant changes include updating build scripts and configuration to use package.project.json, adding new model and loader files, and refactoring UI layout code in src/init.luau to use more modern and idiomatic Roblox APIs for sizing and positioning. These updates streamline the build process, improve maintainability, and modernize the codebase.

Build System and Configuration Updates

• Updated build scripts (scripts/build.sh, scripts/build.cmd) and workflow configuration (.github/workflows/release.yml) to use package.project.json for building, and added a VSCode task for building Rojo projects. [1] [2] [3] [4]
• Added new project configuration files (package.project.json, develop.project.json, models/Satchel/Packages.project.json) and updated default.project.json to improve organization and loader setup. [1] [2] [3] [4]

Model and Loader Additions

• Added model loader files (models/Satchel/init.luau, models/init.client.luau) and a thumbnail camera model (models/ThumbnailCamera.model.json) for better asset management and loading. [1] [2] [3]

UI Refactoring and Modernization

• Refactored multiple instances in src/init.luau to use UDim2.fromOffset and UDim2.fromScale instead of UDim2.new for sizing and positioning, improving readability and aligning with current Roblox best practices. [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17]

Dependency and Tooling Updates

• Updated tool versions in rokit.toml to ensure compatibility and access to recent features and bug fixes.

Minor Code Improvements

• Changed the way topbarplus is required in src/init.luau for improved reliability.

Checklist

• I have tested these changes thoroughly.
• I have reviewed my code for any potential errors or issues.
• I have followed the code style guidelines for this project.

Additional Notes