Make hotseat fit one line on tablets

When running on tablets in landscape, the QSB should inline with the hotseat icons. This does that and fixes small bugs that didn't account for the new hotseatBorderSpace.

Bug: 210118169
Test: atest Launcher3Tests:DeviceProfileTest
Test: visual, using HSV and Window
Change-Id: I5a89c5449bf59fde736618151eceaacca443ef67
diff --git a/tests/Android.bp b/tests/Android.bp
index 8def20f..f3e0500 100644
--- a/tests/Android.bp
+++ b/tests/Android.bp
@@ -23,7 +23,10 @@
 // Source code used for test
 filegroup {
     name: "launcher-tests-src",
-    srcs: ["src/**/*.java"],
+    srcs: [
+      "src/**/*.java",
+      "src/**/*.kt"
+    ],
 }
 
 // Source code used for oop test helpers