Fix 3 `Objects365.yaml` class names (#16002)

ultralytics/cfg/datasets/Objects365.yaml

@@ -113,7 +113,7 @@ names:
   95: Pot
   96: Cow
   97: Cake
-  98: Dinning Table
+  98: Dining Table
   99: Sheep
   100: Hanger
   101: Blackboard/Whiteboard
@@ -304,7 +304,7 @@ names:
   286: Hammer
   287: Cue
   288: Avocado
-  289: Hamimelon
+  289: Hami melon
   290: Flask
   291: Mushroom
   292: Screwdriver
@@ -328,7 +328,7 @@ names:
   310: Dishwasher
   311: Crab
   312: Hoverboard
-  313: Meat ball
+  313: Meatball
   314: Rice Cooker
   315: Tuba
   316: Calculator