Add inter font

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

flake.nix

@@ -24,7 +24,12 @@
         treefmt = inputs.treefmt-nix.lib.evalModule pkgs ./treefmt.nix;
       in
       {
-        devShells.${system}.default = pkgs.mkShell { packages = with pkgs; [ hugo ]; };
+        devShells.${system}.default = pkgs.mkShell {
+          packages = with pkgs; [
+            hugo
+            unzip
+          ];
+        };
 
         formatter.${system} = treefmt.config.build.wrapper;
         checks.formatting.${system} = treefmt.config.build.check inputs.self;