Publish topic guides to the wiki and document tabbed windows

Publish the guides from this repository to the GitHub Wiki. Organize them into Usage, Configuration and Development, with 15 separate configuration topics and redirects for the former website guide URLs.

Add a tabbed-windows guide covering grouping, switching tabs and taking windows out. Document the scrolling indicator's defaults and limits, and link the guide from the README, shortcuts and IPC pages. Update from main, including the latest tabbed-layout changes.

Separate Activities setup, configuration and publishing documentation. Review the guide prose with the unslop skill, keeping existing examples and heading links. The wiki workflow uses GitHub's built-in token to publish documentation changes on main.

Validation:

- 20 documentation tests pass, including README links and Activities/tab-indicator field coverage.
- The publisher builds 46 wiki pages; the site build and Python syntax checks pass.
- All 115 code examples from main are preserved.
- The Python suite passes: 90 tests passed and 31 opt-in integration tests skipped, with the system GI module available.

docs/configuration/input.md

@@ -0,0 +1,53 @@
+# Input
+
+| `input` key | Type | Default | Meaning |
+| --- | --- | --- | --- |
+| `focus-follows-mouse` | boolean | `false` | Focus visible windows under the pointer without raising them or scrolling; click or use keyboard focus to reveal a window |
+| `xkb-layout` | nonempty string | `"us"` | XKB layout |
+| `xkb-variant` | string | `""` | XKB variant |
+| `xkb-options` | string array | `[]` | XKB options |
+| `repeat-rate` | integer > 0 | `25` | Repeats per second |
+| `repeat-delay-ms` | integer ≥ 0 | `600` | Delay before repeat |
+
+With focus-follows-mouse enabled, hovering a visible part of a window changes
+keyboard focus without raising it or moving the scrolling viewport. Clicking or
+using directional keyboard focus brings the selected window into view.
+
+In Overview (`Super+Tab`), click a window preview or a miniature inside a workspace
+card to activate that exact window. Hover highlights the target; directional
+focus keys move the selection, Enter activates it, and Escape dismisses Overview.
+Clicking a workspace card's background switches workspaces while keeping Overview
+open. Previews follow layout order and use the configured shell font and colors.
+
+The touchpad device keys are booleans, all defaulting to `true`: `tap`,
+`natural-scroll` and `disable-while-typing`. These apply to DRM devices; nested
+previews use the host's physical input settings.
+
+Workspace swipes and left/right window-focus swipes follow your fingers and settle
+when released. Up goes to the next workspace on the
+current monitor, down to the previous; left focuses the window to the right,
+and right focuses the window to the left. Workspace swipes skip workspaces owned
+by other monitors and stop at the first/last workspace. Short or cancelled navigation
+swipes slide back; diagonal swipes do not navigate. Navigation pauses while locked, during
+window grabs, or when an application inhibits shortcuts.
+
+Assign swipes in **Settings → Keyboard & mouse → Shortcuts** using the same actions and arguments as
+keyboard bindings. Choose a "Customize swipe" button to add an override. The
+gesture keys are `Swipe3Up`, `Swipe3Down`, `Swipe3Left`, and `Swipe3Right`; 4 or 5
+fingers are also supported. Changes reload live:
+
+```kdl
+binding keys="Swipe3Up" action="toggle-overview"
+binding keys="Swipe3Left" action="move" argument="left"
+binding keys="Swipe3Down" disabled=#true
+```
+
+`spawn` uses a named entry from `commands`, just like keyboard shortcuts. To
+disable a direction in Settings, set its action to `none` and leave Argument
+empty. In KDL, `disabled=#true` removes the default binding. Swipes do not use
+keyboard modifiers or physical key matching. The trigger is automatically
+recognized from its name. Gesture navigation uses native touchpad events in a
+hardware session.
+
+Adjust recognition distance in **Settings → Keyboard & mouse**, or with
+`swipe-threshold 80` under `input.touchpad` (integer 16–1000 logical pixels).