treewide: format all files (#57)

Run `nix fmt` at the root of the repository to format all files. I've
done this on my fork and this will help me merge your changes later
without having to deal with un-formatted files.

config/auto_cmds.nix

@@ -1,15 +1,15 @@
 {
   autoGroups = {
-    highlight_yank = {};
-    vim_enter = {};
-    indentscope = {};
-    restore_cursor = {};
+    highlight_yank = { };
+    vim_enter = { };
+    indentscope = { };
+    restore_cursor = { };
   };
 
   autoCmd = [
     {
       group = "highlight_yank";
-      event = ["TextYankPost"];
+      event = [ "TextYankPost" ];
       pattern = "*";
       callback = {
         __raw = ''
@@ -21,7 +21,7 @@
     }
     {
       group = "vim_enter";
-      event = ["VimEnter"];
+      event = [ "VimEnter" ];
       pattern = "*";
       callback = {
         __raw = ''
@@ -33,7 +33,7 @@
     }
     {
       group = "indentscope";
-      event = ["FileType"];
+      event = [ "FileType" ];
       pattern = [
         "help"
         "Startup"
@@ -54,7 +54,7 @@
     ## from NVChad https://nvchad.com/docs/recipes (this autocmd will restore the cursor position when opening a file)
     {
       group = "restore_cursor";
-      event = ["BufReadPost"];
+      event = [ "BufReadPost" ];
       pattern = "*";
       callback = {
         __raw = ''