reformat everything

using @girtsf clang-format prefs settings.  This should allow us to turn
on auto format in our editors without causing spurious file changes.

src/screen.h

@@ -108,7 +108,7 @@ class Screen : public PeriodicTask
     /// Rebuilds our list of frames (screens) to default ones.
     void setFrames();
 
-private:
+  private:
     /// Queue of commands to execute in doTask.
     TypedQueue<CmdItem> cmdQueue;
     /// Whether we are using a display