Speed up squeeze activity slightly (see #110)

android/app/src/main/java/org/cmucreatelab/android/flutterprek/activities/student_section/coping_skills/coping_skill_squeeze/SqueezeStateHandler.java

@@ -30,7 +30,7 @@ enum State {
     private State currentState = State.STOPPED;
     private static final int numBackgroundImages = 20;
     private static final int squeezeThreshold = 5;
-    private static final long defaultAnimSpeed = 65000L;
+    private static final long defaultAnimSpeed = 55000L;
 
     private final SqueezeCopingSkillActivity activity;
     private final BleSqueezeScanner bleSqueezeScanner;