Update gitignore (sorry)

electron/node_modules/boolean/lib/isBooleanable.ts

@@ -0,0 +1,20 @@
+const isBooleanable = function (value: any): boolean {
+  switch (Object.prototype.toString.call(value)) {
+    case '[object String]':
+      return [
+        'true', 't', 'yes', 'y', 'on', '1',
+        'false', 'f', 'no', 'n', 'off', '0'
+      ].includes(value.trim().toLowerCase());
+
+    case '[object Number]':
+      return [ 0, 1 ].includes(value.valueOf());
+
+    case '[object Boolean]':
+      return true;
+
+    default:
+      return false;
+  }
+};
+
+export { isBooleanable };