chore(i18n): Fix typo in Chinese (Simplified) translation

Co-authored-by: Amos Wong <8733840+amoshydra@users.noreply.github.com>

wayvr/src/assets/lang/zh_CN.json

@@ -48,7 +48,7 @@
       "FULL_FRAME": "完整 3D",
       "FULL_FRAME_SBS": "完整左右 (Full-SBS)",
       "FULL_FRAME_TAB": "完整上下 (Full-TAB)",
-      "FULL_FRAME_BAT": "完整上下 (Full-BAT)"
+      "FULL_FRAME_BAT": "完整下上 (Full-BAT)"
     },
     "MOUSE": {
       "TITLE": "鼠标修复",