[Keymap] Userspace refactor, adding leader key functionality (#7790)

* Userspace refactor

* Fixed missed ifdef

* tapcode16, adjust layout

* glcdfont changes from #7745

* Modify Keymaps, add workman

* RGB & OLED update

users/curry/leader.c

@@ -0,0 +1,24 @@
+#include "curry.h"
+#include "leader.h"
+
+LEADER_EXTERNS();
+
+void matrix_scan_user(void) {
+    static bool has_ran_yet;
+    if (!has_ran_yet) {
+        has_ran_yet = true;
+        startup_user();
+    }
+
+#if defined(RGBLIGHT_ENABLE) || defined(RGB_MATRIX_ENABLE)
+    matrix_scan_rgb();
+#endif  // RGBLIGHT_ENABLE
+    LEADER_DICTIONARY() {
+        leading = false;
+        leader_end();
+        SEQ_ONE_KEY(KC_F) { SEND_STRING(SS_LCTL("akf")); } // Select all and format
+        SEQ_ONE_KEY(KC_P) { SEND_STRING(SS_LCTL(SS_LSFT("4"))); } // Screenshot region
+        SEQ_TWO_KEYS(KC_D, KC_D) { SEND_STRING(SS_LCTL("ac")); } // Copy all
+    }
+    matrix_scan_keymap();
+}