Fix unit tests

lib/android/app/src/main/java/com/reactnativenavigation/views/titlebar/TitleBar.java

     }
 
     public void setHeight(int height) {
+        if (height == getLayoutParams().height) return;
         ViewGroup.LayoutParams lp = getLayoutParams();
         lp.height = (int) UiUtils.dpToPx(getContext(), height);
         setLayoutParams(lp);

lib/android/app/src/main/java/com/reactnativenavigation/views/topbar/TopBar.java

     }
 
     public void setHeight(int height) {
+        if (height == getLayoutParams().height) return;
         ViewGroup.LayoutParams lp = getLayoutParams();
         lp.height = (int) UiUtils.dpToPx(getContext(), height);
         setLayoutParams(lp);

lib/android/app/src/test/java/com/reactnativenavigation/views/TopBarBackgroundComponentTest.java

         TopBarBackgroundView background = (TopBarBackgroundView) ViewUtils.findChildrenByClassRecursive(uut, TopBarBackgroundView.class).get(0);
         assertThat(background).isNotNull();
         assertThat(background.getLayoutParams().width).isEqualTo(ViewGroup.LayoutParams.MATCH_PARENT);
-        assertThat(background.getLayoutParams().height).isEqualTo(uut.getHeight());
+        assertThat(background.getLayoutParams().height).isEqualTo(100);
     }
 
     @Test