Fix issue with floating rotation button being in the wrong corner (launcher)

- Add option for the rotation button to be positioned to the right
  when in ROTATION_0

Bug: 265197526
Test: atest FloatingRotationButtonPositionCalculatorTest
Test: foldable-folded (floating rot button in sysui, natural rot=rot_0)
      foldable-unfolded (floating rot button in launcher, natural rot=rot_0)
      tablet (floating rot in launcher, natural rot=rot_270)
Change-Id: I856a0be2e10fceb34254cd58ceb58dfa8a1819bd
diff --git a/res/values/config.xml b/res/values/config.xml
index 016420b..1206dd8 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -203,4 +203,7 @@
     <!-- The max scale for the wallpaper when it's zoomed in -->
     <item name="config_wallpaperMaxScale" format="float" type="dimen">0</item>
 
+    <!-- Whether the floating rotation button should be on the left/right in the device's natural
+         orientation -->
+    <bool name="floating_rotation_button_position_left">true</bool>
 </resources>