treewide: add and apply typos pre-commit hook

Link: danth#519
(cherry picked from commit 5ab7d03)

docs/src/styling.md

@@ -11,7 +11,7 @@ applications that don't fit into any of the groups below. In this case it is up
 to the committer to make sure said application fits in stylistically with the
 rest of the themed applications.
 
-It is also importent to note that this is a growing theming guide and when theming an application and you find the guide to be lacking in any way in
+It is also important to note that this is a growing theming guide and when theming an application and you find the guide to be lacking in any way in
 terms of direction, you are encouraged to open an issue regarding what you would like to see added to the style guide.
 
 ## Terms

flake.nix

@@ -101,6 +101,7 @@
             hooks = {
               deadnix.enable = true;
               statix.enable = true;
+              typos.enable = true;
             };
 
             src = ./.;

palette-generator/Stylix/Output.hs

@@ -10,7 +10,7 @@ toHexNum :: Double -> Word8
 toHexNum = truncate
 
 {- |
-Convert a colour to a hexdecimal string.
+Convert a colour to a hexadecimal string.
 
 >>> toHex (RGB 255 255 255)
 "ffffff"

palette-generator/Stylix/Palette.hs

@@ -10,7 +10,7 @@ import Data.Vector ( (//) )
 import qualified Data.Vector as V
 import System.Random ( randomRIO )
 
--- | Extract the primary scale from a pallete.
+-- | Extract the primary scale from a palette.
 primary :: V.Vector a -> V.Vector a
 primary = V.take 8
 

stylix/testbed.nix

@@ -14,7 +14,7 @@ let
     security.sudo.wheelNeedsPassword = false;
 
     # The state version can safely track the latest release because the disk
-    # image is ephermal.
+    # image is ephemeral.
     system.stateVersion = config.system.nixos.release;
     home-manager.users.${username}.home.stateVersion = config.system.nixos.release;