[API] Fix bug, rename param set -> data (BREAKING)

src/web/app/boot.js

@@ -157,7 +157,7 @@ function fetchme(token, cb) {
 	function init() {
 		const data = generateDefaultUserdata();
 		api(token, 'i/appdata/set', {
-			set: data
+			data
 		}).then(() => {
 			me.data = data;
 			done();