feat: 4th layer support

src/lib/assets/tests/chording/dup_input.yml

@@ -0,0 +1,45 @@
+test:
+  - clearChords: true
+    remap:
+      A1:
+        - [d, DUP]
+    addChords:
+      - input: [[DUP, s, e]]
+        output: [t, e, s, t]
+    settings:
+      autocorrect:
+        maximum attempts: 0
+    idle: true
+
+  - press: [s]
+    keys: [s]
+  - release: [s]
+  - step: 16
+    keys: []
+    idle: true
+
+  - step: 16
+    idle: true
+
+  - press: [s]
+    keys: [s]
+  - press: [d]
+    keys: []
+  - keys: [s]
+  - press: [e]
+    keys: [s, e]
+  - release: [d, e, s]
+  - step: 16
+    keys: []
+  - keys: [BKSP]
+  - keys: []
+  - keys: [BKSP]
+  - keys: []
+  - keys: [BKSP]
+  - keys: [t]
+  - keys: [e]
+  - keys: [s]
+  - keys: [t]
+  - keys: [SPACE]
+  - keys: []
+    idle: true