[BUG] TypeScript is not a dependency

[prattcmp]

TypeScript is used in package.json for postinstall, but its not listed a dependency in package.json. Projects that don't have TypeScript installed by default (in our case we only have vue-tsc) will fail to install.

We resolved this by adding "typescript": "^5.2.2", to our own dependencies, but the proper fix would be for this project to add the typescript npm package to dependencies (not devDependencies; postinstall only relies on dependencies) or to remove the tsc command from postinstall.