Add Button to Expand or Collapse Left Panel

Summary:
- Add `show more` and `show less` button to expand and collapse
- The element to show depends on its usage rank from Flipper dashboard (manually copied)

Reviewed By: danielbuechele

Differential Revision: D16917952

fbshipit-source-id: fc37d5c640be33794694e302341fa08849b8f97f

src/fb-stubs/pluginUsage.tsx

@@ -0,0 +1,42 @@
+/**
+ * Copyright 2018-present Facebook.
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ * @format
+ */
+
+// copied from Flipper dashboard
+const pluginRanking = [
+  'DeviceLogs',
+  'Inspector',
+  'Network',
+  'AnalyticsLogging',
+  'GraphQL',
+  'oculus-service-logs',
+  'UIPerf',
+  'CrashReporter',
+  'Msys',
+  'React',
+  'Databases',
+  'notifications',
+  'MobileConfig',
+  'FunnelLogger',
+  'Fresco',
+  'MScreen',
+  'Preferences',
+  'DeviceCPU',
+  'Hermesdebugger',
+  'vros-event-profiler',
+  'Mobileboost',
+  'Sections',
+  'Composer',
+  'Stories',
+  'DesignOverlay',
+];
+
+export function isTopUsedPlugin(pluginName: string, range: number): boolean {
+  const rank = pluginRanking.findIndex((name: string) => {
+    return name === pluginName;
+  });
+  return rank >= 0 && rank < range;
+}