Resize tabbar properly

Ref #1467

internal/action/tab.go

@@ -91,6 +91,7 @@ func (t *TabList) Resize() {
 		t.List[0].Node.Resize(w, h-iOffset)
 		t.List[0].Resize()
 	}
+	t.TabWindow.Resize(w, h)
 }
 
 // HandleEvent checks for a resize event or a mouse event on the tab bar

internal/display/tabwindow.go

@@ -25,6 +25,10 @@ func NewTabWindow(w int, y int) *TabWindow {
 	return tw
 }
 
+func (w *TabWindow) Resize(width, height int) {
+	w.width = width
+}
+
 func (w *TabWindow) LocFromVisual(vloc buffer.Loc) int {
 	x := -w.hscroll