Migration to typescript: first step

Add vue cli typescript support
Rename .js to .ts
Use class and annotations in App and NavBar
Add tslint

js/src/graphql/actor.ts

@@ -0,0 +1,39 @@
+import gql from 'graphql-tag';
+
+export const FETCH_ACTOR = gql`
+query($name:String!) {
+  actor(preferredUsername: $name) {
+    url,
+    outboxUrl,
+    inboxUrl,
+    followingUrl,
+    followersUrl,
+    sharedInboxUrl,
+    name,
+    domain,
+    summary,
+    preferredUsername,
+    suspended,
+    avatarUrl,
+    bannerUrl,
+    organizedEvents {
+        uuid,
+        title,
+        description,
+        organizer_actor {
+            avatarUrl,
+            preferred_username,
+            name,
+        }
+    },
+  }
+}
+`;
+
+export const LOGGED_ACTOR = gql`
+query {
+  loggedActor {
+    avatarUrl,
+    preferredUsername,
+  }
+}`;