Always show Flipper version

Summary:
This moves the version display from the updater component
to the titlebar itself, so it'll be shown even in dev mode.

This is already useful when using it on platforms like Linux
where the updater isn't supported, but will also help when
moving to the launcher model.

Reviewed By: jknoxville

Differential Revision: D13819139

fbshipit-source-id: cbc127b8ccdf932f823bc1f40319f296516dfc31

src/chrome/__tests__/TitleBar.electron.js

@@ -24,6 +24,7 @@ test('TitleBar is rendered', () => {
         toggleLeftSidebarVisible={() => {}}
         toggleRightSidebarVisible={() => {}}
         setActiveSheet={_sheet => {}}
+        version="1.0.0"
       />
     </Provider>,
   );

src/chrome/__tests__/__snapshots__/TitleBar.electron.js.snap

@@ -55,6 +55,12 @@ exports[`TitleBar is rendered 1`] = `
   <div
     className="css-12zzrdt"
   />
+  <span
+    className="css-lli23c"
+  >
+    1.0.0
+    -dev
+  </span>
   <div
     className="css-1cecbfb"
     onClick={[Function]}