refactor: move git ignore alias to own script

modules/programs/fish.nix

@@ -50,24 +50,6 @@ in
             ${exportedVariables}
           '';
           functions = {
-            gi = ''
-              set url https://www.gitignore.io/api
-
-              if test (count $argv) -eq 0
-                set choice ( curl -sL $url/list \
-                           | string split "," \
-                           | ${getExe pkgs.fzf} -m \
-                           | string join "," )
-              else
-                set choice (string join "," $argv[1..])
-              end
-
-              if ${getExe pkgs.gum} confirm "Overwrite current .gitignore?"
-                ${getExe pkgs.curl} -sL $url/$choice > .gitignore
-              else
-                ${getExe pkgs.curl} -sL $url/$choice >> .gitignore
-              end
-            '';
             fish_greeting = "";
             cheat = "cht.sh $argv | bat -p";
           };