- Changed the default project file from `plugin.project.json` to `plugin.project.json5` in `build.rs`.
- Added new project configuration files in JSON5 format for various test cases, including `default.project.json5`, `client_in_folder`, `csv_bug_145`, and others.
- Updated snapshot files to reflect changes in instance structure and properties, ensuring consistency with the new project configurations.
- Removed unnecessary script and module instances from snapshot files to streamline the testing process.
- Cleared out redundant attributes from various snapshot files, specifically removing `Rojo_Target_Value` and `Rojo_Target_PrimaryPart` where applicable.
- Ensured that attributes are consistently represented as empty objects when not needed, enhancing clarity in the snapshot structure.
- Adjusted related test cases to reflect these changes, ensuring alignment with the updated snapshot expectations.
