fix: Update incorrect option defaults and add semicolons

Change-Id: I6d0be31dcef568b96005b4f97c82bc85c93477fe
Reviewed-on: https://git.clicks.codes/c/Chimera/NixFiles/+/735
Reviewed-by: Skyler Grey <minion@clicks.codes>
Tested-by: Skyler Grey <minion@clicks.codes>
diff --git a/modules/home/wayland/niri/default.nix b/modules/home/wayland/niri/default.nix
index 0695273..d6066cd 100644
--- a/modules/home/wayland/niri/default.nix
+++ b/modules/home/wayland/niri/default.nix
@@ -256,6 +256,7 @@
             { proportion = 1. / 3.; }
             { proportion = 1. / 2.; }
             { proportion = 2. / 3.; }
+            { proportion = 9. / 10.; }
           ]; # TODO: clicks to PR a docs update for niri-flake
         };