feat(wm): promote containers by swapping indices

This commit adds a new SocketMessage variant PromoteSwap and
corresponding komorebic promote-swap command.

PromoteSwap will also promote the focused window container to the
largest tile in the layout, but instead of removing the focused
container x from the Ring and inserting it into position 0, possibly
changing the positions of other windows between 0 and x, the indices x
and 0 in the Ring will be swapped directly.

docs/cli/promote-swap.md

@@ -0,0 +1,12 @@
+# promote-swap
+
+```
+Promote the focused window to the largest tile by swapping container indices with the largest tile
+
+Usage: komorebic.exe promote-swap
+
+Options:
+  -h, --help
+          Print help
+
+```

docs/cli/promote.md

@@ -1,7 +1,7 @@
 # promote
 
 ```
-Promote the focused window to the top of the tree
+Promote the focused window to the largest tile via container removal and re-insertion
 
 Usage: komorebic.exe promote