feat share: Ability to share files using Web Activities

feat pick: Ability to pick files for other apps

src/js/actions/pick.js

@@ -0,0 +1,15 @@
+import { PICK } from 'actions/types';
+
+export function enable(request) {
+  return {
+    type: PICK,
+    active: request
+  }
+}
+
+export function disable() {
+  return {
+    type: PICK,
+    active: false
+  }
+}

src/js/actions/types.js

@@ -20,14 +20,15 @@ const TYPES = {
   MOVE_FILE: Symbol('MOVE_FILE'),
 
   MENU: Symbol('MENU'),
-
   DIALOG: Symbol('DIALOG'),
 
   SPINNER: Symbol('SPINNER'),
 
   SETTINGS: Symbol('SETTINGS'),
 
-  SEARCH: Symbol('SEARCH')
+  SEARCH: Symbol('SEARCH'),
+
+  PICK: Symbol('PICK')
 };
 
 export default TYPES;