Remove the app.Draw() gorountine

Prefer to have widgets force a draw when their data changes. This should
reduce draws (unless the user has a module installed that updates >=
1/sec, the old draw default).

This should also remove a source of some of the race conditions that
users were experiencing (though not all, there are still many).

status/widget.go

@@ -1,6 +1,7 @@
 package status
 
 import (
+	"github.com/rivo/tview"
 	"github.com/senorprogrammer/wtf/wtf"
 )
 
@@ -10,9 +11,9 @@ type Widget struct {
 	CurrentIcon int
 }
 
-func NewWidget() *Widget {
+func NewWidget(app *tview.Application) *Widget {
 	widget := Widget{
-		TextWidget:  wtf.NewTextWidget("Status", "status", false),
+		TextWidget:  wtf.NewTextWidget(app, "Status", "status", false),
 		CurrentIcon: 0,
 	}