Add mac app agent and Terminal.app specific keybinds

keymaps/custom/app_focus.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+
+typedef enum {
+    APP_UNKNOWN,
+    APP_TERMINAL,  // Terminal.app, iTerm2
+    APP_XCODE,
+    APP_VSCODE,    // Visual Studio Code
+} focused_app_t;
+
+extern focused_app_t focused_app;
+
+bool app_focus_raw_hid_intercept(uint8_t *data, uint8_t length);