[Keymap] Update to userspace kuchosauroand0 (#6596)

* added combos

* minor adjustments, added combos

* Add second encoder, add modifiers to encoders

Added a skeleton for the possibily having a second encoder.
Added 9 modifiers for the first rotary encoder:

- None
  General navigation. Page up/down
- SHIFT
  Fast navigation. Home/end
- CTRL
  Vertical navigation. Up/down
- CTRL+SHIFT
  Horizontal navigation. Left/right
- ALT
  Audio volume control.
- GUI
  Browser navigation(windows). Forward/backward
- ALT+SHIFT
  Form navigation. Tab up/down
- ALT+CTRL
  Media control. (Play|pause)/mute
- HYPER
  Media navigation. Next/prev track

Key codes are stored in `uint16_t encoder_actions[2][9]`

* Add second encoder, add modifiers to encoders

Added a skeleton for the possibily having a second encoder.
Added 9 modifiers for the first rotary encoder:

- None
  General navigation. Page up/down
- SHIFT
  Fast navigation. Home/end
- CTRL
  Vertical navigation. Up/down
- CTRL+SHIFT
  Horizontal navigation. Left/right
- ALT
  Audio volume control.
- GUI
  Browser navigation(windows). Forward/backward
- ALT+SHIFT
  Form navigation. Tab up/down
- ALT+CTRL
  Media control. (Play|pause)/mute
- HYPER
  Media navigation. Next/prev track

Key codes are stored in `uint16_t encoder_actions[2][9]`

* Clean up; added combos

Combos:
- CV: Copy
- XC: Cut
- ZV: Paste
- QP: KC_SLEEP

* Fix LEADER_DICTIONARY to be more useful

* Add documentation

* Minor fixes

* Raise TAPPING_TERM

* testing

* Rearrange modifiers

* Fix kc being stored in uint8 instead of uint16

* Update documentation

* Clean up

* Remove excess comments

* Put encoder_actions in progmem

users/kuchosauronad0/combo.c

@@ -0,0 +1,27 @@
+#include "combo.h"
+
+void process_combo_event(uint8_t combo_index, bool pressed){
+  switch(combo_index) {
+    case ZV_COPY:
+      if (pressed) {
+        tap_code16(LCTL(KC_C));
+      }
+      break;
+    case XV_CUT:
+      if (pressed) {
+        tap_code16(LCTL(KC_X));
+      }
+      break;
+
+    case CV_PASTE:
+      if (pressed) {
+        tap_code16(LCTL(KC_V));
+      }
+      break;
+    case QP_SLEEP:
+      if (pressed) {
+        tap_code16(KC_SYSTEM_SLEEP);
+      }
+      break;
+  }
+}