Move app/src (mostly) to flipper-ui-core/src

Summary:
This diff moves all UI code from app/src to app/flipper-ui-core. That is now slightly too much (e.g. node deps are not removed yet), but from here it should be easier to move things out again, as I don't want this diff to be open for too long to avoid too much merge conflicts.

* But at least flipper-ui-core is Electron free :)
* Killed all cross module imports as well, as they where now even more in the way
* Some unit test needed some changes, most not too big (but emotion hashes got renumbered in the snapshots, feel free to ignore that)
* Found some files that were actually meaningless (tsconfig in plugins, WatchTools files, that start generating compile errors, removed those

Follow up work:
* make flipper-ui-core configurable, and wire up flipper-server-core in Electron instead of here
* remove node deps (aigoncharov)
* figure out correct place to load GKs, plugins, make intern requests etc., and move to the correct module
* clean up deps

Reviewed By: aigoncharov

Differential Revision: D32427722

fbshipit-source-id: 14fe92e1ceb15b9dcf7bece367c8ab92df927a70

desktop/flipper-ui-core/src/dispatcher/index.tsx

@@ -0,0 +1,52 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+// Used responsibly.
+import flipperServer from './flipperServer';
+import application from './application';
+import tracking from './tracking';
+import notifications from './notifications';
+import plugins from './plugins';
+import user from './fb-stubs/user';
+import pluginManager from './pluginManager';
+import reactNative from './reactNative';
+import pluginMarketplace from './fb-stubs/pluginMarketplace';
+import pluginDownloads from './pluginDownloads';
+import info from '../utils/info';
+import pluginChangeListener from './pluginsChangeListener';
+
+import {Logger} from 'flipper-common';
+import {Store} from '../reducers/index';
+import {Dispatcher} from './types';
+import {notNull} from '../utils/typeUtils';
+
+export default function (store: Store, logger: Logger): () => Promise<void> {
+  // This only runs in development as when the reload
+  // kicks in it doesn't unregister the shortcuts
+  const dispatchers: Array<Dispatcher> = [
+    application,
+    tracking,
+    flipperServer,
+    notifications,
+    plugins,
+    user,
+    pluginManager,
+    reactNative,
+    pluginMarketplace,
+    pluginDownloads,
+    info,
+    pluginChangeListener,
+  ].filter(notNull);
+  const globalCleanup = dispatchers
+    .map((dispatcher) => dispatcher(store, logger))
+    .filter(Boolean);
+  return () => {
+    return Promise.all(globalCleanup).then(() => {});
+  };
+}