Change k to q for killing/closing/quitting in sway, neovim, and tmux.

Reason for this is because cmd+q on mac os. I want my setup to be
universal between mac and lin, or as close as it possibly can be.

home/.config/nvim/lua/keymaps.lua

@@ -33,7 +33,7 @@ require("utils").add_keymaps({
         },
 
         -- Window
-        ["<C-k>"] = {
+        ["<C-q>"] = {
             cmd = "<C-w>q",
         },
 
@@ -115,7 +115,7 @@ require("utils").add_keymaps({
         },
     },
     t = {
-        ["<C-k>"] = {
+        ["<C-q>"] = {
             cmd = "<C-\\><C-N>",
         },
     },