ui: tweak fab animation duration

Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>

ui/src/main/res/anim/scale_down.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <set xmlns:android="http://schemas.android.com/apk/res/android" >
     <scale
-        android:duration="400"
+        android:duration="300"
         android:fromXScale="1.0"
         android:fromYScale="1.0"
         android:interpolator="@android:anim/linear_interpolator"

ui/src/main/res/anim/scale_up.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <set xmlns:android="http://schemas.android.com/apk/res/android" >
     <scale
-        android:duration="400"
+        android:duration="300"
         android:fromXScale="0"
         android:fromYScale="0"
         android:interpolator="@android:anim/linear_interpolator"