Everywhere: Fix more typos

Author: https://github.com/linusg
Commit: bcfc6f0c57
Pull-request: https://github.com/SerenityOS/serenity/pull/3668
Reviewed-by: https://github.com/bugaevc
Reviewed-by: https://github.com/xTibor

Libraries/LibChess/Chess.h

@@ -137,8 +137,8 @@ public:
         StaleMate,
         FiftyMoveRule,
         SeventyFiveMoveRule,
-        ThreeFoldRepitition,
-        FiveFoldRepitition,
+        ThreeFoldRepetition,
+        FiveFoldRepetition,
         InsufficientMaterial,
         NotFinished,
     };