feat: implement scratchpad window toggling

toml-spec/spec/spec.yaml

@@ -345,6 +345,42 @@ Action:
               description: The name of the workspace.
               required: true
               kind: string
+        send-to-scratchpad:
+          description: |
+            Sends the currently focused window to a scratchpad and hides it.
+
+            If `name` is omitted, the default scratchpad is used.
+
+            - Example:
+
+              ```toml
+              [shortcuts]
+              alt-shift-minus = { type = "send-to-scratchpad", name = "terminal" }
+              ```
+          fields:
+            name:
+              description: The name of the scratchpad.
+              required: false
+              kind: string
+        toggle-scratchpad:
+          description: |
+            Toggles a scratchpad.
+
+            If the scratchpad has a visible window, that window is hidden. Otherwise, the
+            most recently hidden window in the scratchpad is shown on the current workspace.
+            If `name` is omitted, the default scratchpad is used.
+
+            - Example:
+
+              ```toml
+              [shortcuts]
+              alt-minus = { type = "toggle-scratchpad", name = "terminal" }
+              ```
+          fields:
+            name:
+              description: The name of the scratchpad.
+              required: false
+              kind: string
         move-to-output:
           description: |
             Moves a workspace to a different output.
@@ -1076,6 +1112,10 @@ SimpleActionName:
       description: Makes the currently focused window fullscreen.
     - value: exit-fullscreen
       description: Makes the currently focused window windowed.
+    - value: send-to-scratchpad
+      description: Sends the currently focused window to the default scratchpad.
+    - value: toggle-scratchpad
+      description: Toggles the default scratchpad.
     - value: focus-parent
       description: Focus the parent of the currently focused window.
     - value: close