Maintenance: update devDependencies and peerDependencies, fix npm audits and make tests run

.eslintrc.js

@@ -0,0 +1,19 @@
+module.exports = {
+    "env": {
+        "browser": true,
+        "es2021": true
+    },
+    "extends": "plugin:react/recommended",
+    "parserOptions": {
+        "ecmaFeatures": {
+            "jsx": true
+        },
+        "ecmaVersion": 12,
+        "sourceType": "module"
+    },
+    "plugins": [
+        "react"
+    ],
+    "rules": {
+    }
+};

.gitignore

@@ -1 +1,2 @@
 node_modules
+dist

babel.config.js

@@ -1,11 +1,7 @@
 module.exports = function (api) {
 	const presets = [];
 
-	// Resolve ES2015+ only before publishing to NPM
-	if (process.env['NODE_ENV'] === 'production') {
-		presets.push('@babel/preset-env');
-	}
-
+	presets.push('@babel/preset-env');
 	presets.push('@babel/preset-react');
 
 	const plugins = [];