feat(wm): promote

The first tile of a layout is its largest, and the place for the window being
worked on. `komorebic promote` moves the focused window there, with the windows
that were before it each moving one tile on; `promote-swap` swaps it with the
window that has the first tile, and from the first tile swaps it back with the
window it was last swapped with; `promote-window left|right|up|down` promotes
the window on that side of the focused one; and `promote-focus` gives the focus
to the first tile and moves nothing.

The grid layout has no largest tile, so the four do nothing there.

The vm-commands sweep gains the four.

docs/cli/promote-focus.md

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+```text
+Promote the user focus to the largest window container
+
+Usage: promote-focus
+
+Options:
+  -h, --help
+          Print help
+
+```

docs/cli/promote-swap.md

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+```text
+Promote the focused window to the largest tile by swapping container indices with the largest tile
+
+Usage: promote-swap
+
+Options:
+  -h, --help
+          Print help
+
+```

docs/cli/promote-window.md

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+```text
+Promote the window in the specified direction
+
+Usage: promote-window <OPERATION_DIRECTION>
+
+Arguments:
+  <OPERATION_DIRECTION>
+          [possible values: left, right, up, down]
+
+Options:
+  -h, --help
+          Print help
+
+```

docs/cli/promote.md

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+```text
+Promote the focused window to the largest tile via container removal and re-insertion
+
+Usage: promote
+
+Options:
+  -h, --help
+          Print help
+
+```