feat: Add multiple length support

Add support for different lengths of solutions, other than just 5
letters.

This is a hidden feature (for now?) because I want to "soft-launch" it
until I decide how it should look and act. For now, it's implemented as
different languages: `nb-no-3`, `nn-no-7`, etc. The 5-letter version is
still left at `nb-no` and `nn-no` for consistency.

.gitignore

@@ -27,3 +27,6 @@ dist-ssr
 .terraform
 .terraform.lock.hcl
 terraform.*.backup
+
+# Build artifacts
+*.tsbuildinfo

eslint.config.js

@@ -1,28 +1,36 @@
-import js from '@eslint/js'
-import globals from 'globals'
-import reactHooks from 'eslint-plugin-react-hooks'
-import reactRefresh from 'eslint-plugin-react-refresh'
-import tseslint from 'typescript-eslint'
+import js from "@eslint/js";
+import globals from "globals";
+import reactHooks from "eslint-plugin-react-hooks";
+import reactRefresh from "eslint-plugin-react-refresh";
+import tseslint from "typescript-eslint";
 
 export default tseslint.config(
-  { ignores: ['dist'] },
+  { ignores: ["dist"] },
   {
     extends: [js.configs.recommended, ...tseslint.configs.recommended],
-    files: ['**/*.{ts,tsx}'],
+    files: ["**/*.{ts,tsx}"],
     languageOptions: {
       ecmaVersion: 2020,
       globals: globals.browser,
     },
     plugins: {
-      'react-hooks': reactHooks,
-      'react-refresh': reactRefresh,
+      "react-hooks": reactHooks,
+      "react-refresh": reactRefresh,
     },
     rules: {
       ...reactHooks.configs.recommended.rules,
-      'react-refresh/only-export-components': [
-        'warn',
+      "react-refresh/only-export-components": [
+        "warn",
         { allowConstantExport: true },
       ],
+      "@typescript-eslint/no-unused-vars": [
+        "error",
+        {
+          argsIgnorePattern: "^_",
+          varsIgnorePattern: "^_",
+          caughtErrorsIgnorePattern: "^_",
+        },
+      ],
     },
-  },
-)
+  }
+);