Add .file class + Generator user agent

src/plugins/generator/fetch.js

@@ -0,0 +1,21 @@
+import { fetch as baseFetch } from 'undici'
+import { promises as fs } from 'fs'
+
+const API_URL =
+	process.env.VITE_API_URL && process.env.VITE_API_URL === 'https://staging-api.modrinth.com/v2/'
+		? 'https://staging-api.modrinth.com/v2/'
+		: 'https://api.modrinth.com/v2/'
+
+let version = ''
+
+export async function fetch(route, options = {}) {
+	if (!version) {
+		version = JSON.parse(await fs.readFile('./package.json', 'utf8')).version
+	}
+	return baseFetch(API_URL + route, {
+		...options,
+		headers: {
+			'user-agent': `Omorphia / ${version} (venashial@modrinth.com)`,
+		},
+	})
+}