version artsey dtsi to match upstream, tweak corne artsey bluetooth setup

notes/artsey.txt

@@ -9,6 +9,7 @@
 - Make Enter be ARTS
 - Make Z AYIO
 - Make Caps Lock AE
+- Add question mark to symbols layer?
 - Adjust Function Key setup (F1-12)
     - S == Tap for F1-6 (mapped onto ART/EYI)
     - O == Tap for F7-12 (mapped onto ART/EYI)

zmk-config/config/boards/shields/corne_artsey_left/corne_artsey_left.keymap

@@ -19,7 +19,21 @@
 #define KEY_I 8
 #define KEY_O 7
 
-#include "../../../artsey.dtsi"
+// Thumb buttons (used for BT combos)
+#define THUMB_1 18
+#define THUMB_2 19
+#define THUMB_3 20
+
+/ {
+	combos {
+		compatible = "zmk,combos";
+		chord_bt_clr { key-positions = <THUMB_1 THUMB_3>; bindings = <&bt BT_CLR>; };
+		chord_bt_prv { key-positions = <THUMB_1 THUMB_2>; bindings = <&bt BT_PRV>; };
+		chord_bt_nxt { key-positions = <THUMB_2 THUMB_3>; bindings = <&bt BT_NXT>; };
+        };
+};
+
+#include "../../../artsey_v0_7.dtsi"
 
 / {
 	keymap {
@@ -31,8 +45,7 @@
 				&layer_numbers_kp LAYER_ID_NUMBERS S &kp T &kp R &layer_parentheticals_kp LAYER_ID_PARENTHETICALS A
 				&none &none
 				&layer_navigation_kp LAYER_ID_NAVIGATION O &kp I &kp Y &layer_symbols_kp LAYER_ID_SYMBOLS E
-				&none &none &none &none &none &none &none
+				&none &none &none &none &none &none &none &none &none &none
-				&bt BT_CLR &bt BT_PRV &bt BT_NXT
 			>;
 		};
 		numbers {