Fix sendstring "#" producing "£" instead (#5724)

quantum/keymap_extras/sendstring_uk.h

@@ -25,7 +25,7 @@ const bool ascii_to_shift_lut[0x80] PROGMEM = {
     0, 0, 0, 0, 0, 0, 0, 0,
     0, 0, 0, 0, 0, 0, 0, 0,
 
-    0, 1, 1, 1, 1, 1, 1, 0,
+    0, 1, 1, 0, 1, 1, 1, 0,
     1, 1, 1, 1, 0, 0, 0, 0,
     0, 0, 0, 0, 0, 0, 0, 0,
     0, 0, 1, 0, 1, 0, 1, 1,
@@ -45,7 +45,7 @@ const uint8_t ascii_to_keycode_lut[0x80] PROGMEM = {
     0, 0, 0, 0, 0, 0, 0, 0,
     0, 0, 0, KC_ESC, 0, 0, 0, 0,
 
-    KC_SPC, KC_1, KC_2, KC_3, KC_4, KC_5, KC_7, KC_QUOT,
+    KC_SPC, KC_1, KC_2, KC_NUHS, KC_4, KC_5, KC_7, KC_QUOT,
     KC_9, KC_0, KC_8, KC_EQL, KC_COMM, KC_MINS, KC_DOT, KC_SLSH,
     KC_0, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7,
     KC_8, KC_9, KC_SCLN, KC_SCLN, KC_COMM, KC_EQL, KC_DOT, KC_SLSH,