Update eslint (#198)

- Update eslint

#95, #185

Reviewed-on: #198
Reviewed-by: VylpesTester <tester@vylpes.com>
Co-authored-by: Ethan Lane <ethan@vylpes.com>
Co-committed-by: Ethan Lane <ethan@vylpes.com>

eslint.config.mjs

@@ -0,0 +1,54 @@
+import js from "@eslint/js";
+import ts from "typescript-eslint";
+
+export default [
+    {
+        ignores: [
+            "**/dist/",
+            "eslint.config.mjs",
+            "jest.config.cjs",
+            "jest.setup.js"
+        ],
+    },
+    js.configs.recommended,
+    ...ts.configs.recommended,
+    {
+        languageOptions: {
+            globals: {
+                exports: "writable",
+                module: "writable",
+                require: "writable",
+                process: "writable",
+                console: "writable",
+                jest: "writable",
+            },
+    
+            ecmaVersion: 6,
+            sourceType: "script",
+        },
+    
+        files: [
+            "./src",
+            "./tests"
+        ],
+    
+        rules: {
+            camelcase: "error",
+            "brace-style": ["error", "1tbs"],
+            "comma-dangle": ["error", "never"],
+    
+            "comma-spacing": ["error", {
+                before: false,
+                after: true,
+            }],
+    
+            "comma-style": ["error", "last"],
+            "arrow-body-style": ["error", "as-needed"],
+            "arrow-parens": ["error", "as-needed"],
+            "arrow-spacing": "error",
+            "no-var": "error",
+            "prefer-template": "error",
+            "prefer-const": "error",
+        },
+    }
+];