🚸 Fix BLTouch spelling

Marlin/src/lcd/extui/mks_ui/tft_Language_en.h

@@ -105,7 +105,7 @@
 
 #define LEVELING_PARA_CONF_TITLE_EN     "leveling setting"
 #define AUTO_LEVELING_ENABLE_EN         "Enable auto leveling"
-#define BLTOUCH_LEVELING_ENABLE_EN      "Enable BLtouch"
+#define BLTOUCH_LEVELING_ENABLE_EN      "Enable BLTouch"
 #define PROBE_PORT_EN                   "Probe connector"
 #define PROBE_X_OFFSET_EN               "Probe X-axis offset"
 #define PROBE_Y_OFFSET_EN               "Probe Y-axis offset"

Marlin/src/lcd/extui/mks_ui/tft_Language_s_cn.h

@@ -90,7 +90,7 @@
 
 #define LEVELING_PARA_CONF_TITLE_CN   "调平参数"
 #define AUTO_LEVELING_ENABLE_CN       "自动调平"
-#define BLTOUCH_LEVELING_ENABLE_CN    "启动BLtouch"
+#define BLTOUCH_LEVELING_ENABLE_CN    "启动BLTouch"
 #define PROBE_PORT_CN                 "调平探针接口"
 #define PROBE_X_OFFSET_CN             "探针X方向偏移"
 #define PROBE_Y_OFFSET_CN             "探针Y方向偏移"

Marlin/src/lcd/extui/mks_ui/tft_Language_t_cn.h

@@ -90,7 +90,7 @@
 
 #define LEVELING_PARA_CONF_TITLE_T_CN   "調平參數"
 #define AUTO_LEVELING_ENABLE_T_CN       "自動調平"
-#define BLTOUCH_LEVELING_ENABLE_T_CN    "啟動BLtouch"
+#define BLTOUCH_LEVELING_ENABLE_T_CN    "啟動BLTouch"
 #define PROBE_PORT_T_CN                 "調平探針接口"
 #define PROBE_X_OFFSET_T_CN             "探針X方向偏移"
 #define PROBE_Y_OFFSET_T_CN             "探针Y方向偏移"