fix(ble): Use the term "pairing" in the UI

User study: https://twitter.com/schne1der_/status/1310698476108476418

preload/apps/ble/__init__.py

@@ -106,7 +106,7 @@ while True:
         # print confirmation value
         compare_value = sys_ble.get_compare_value()
         disp.clear()
-        disp.print("BLE: Bond?", posy=0, fg=[0, 0, 255])
+        disp.print("BLE: Pair?", posy=0, fg=[0, 0, 255])
         disp.print("Code:", posy=20, fg=[0, 255, 255])
         disp.print("   %06d" % compare_value, posy=40, fg=[255, 255, 255])
         disp.print("Yes", posy=60, fg=[0, 255, 0])
@@ -122,7 +122,7 @@ while True:
         if v & buttons.BOTTOM_LEFT:
             sys_ble.confirm_compare_value(True)
             disp.clear()
-            disp.print("BLE Bonding", posy=0, fg=[0, 0, 255])
+            disp.print("BLE Pairing", posy=0, fg=[0, 0, 255])
             disp.print("Please Wait", posy=40, fg=[255, 255, 255])
             disp.update()
             state = 5
@@ -138,7 +138,7 @@ while True:
         elif ble_event == sys_ble.EVENT_PAIRING_COMPLETE:
             ble_event = None
             disp.clear()
-            disp.print("BLE Bonding", posy=0, fg=[0, 0, 255])
+            disp.print("BLE Pairing", posy=0, fg=[0, 0, 255])
             disp.print("  Success", posy=40, fg=[0, 255, 0])
             disp.update()
             time.sleep(5)
@@ -147,7 +147,7 @@ while True:
     elif state == 6:
         # display fail screen and wait 5 seconds
         disp.clear()
-        disp.print("BLE Bonding", posy=0, fg=[0, 0, 255])
+        disp.print("BLE Pairing", posy=0, fg=[0, 0, 255])
         disp.print("   Fail", posy=40, fg=[255, 0, 0])
         disp.update()
         time.sleep(5)