initial TS implementation

www/app/lib/custom-plugins/regions.ts

@@ -0,0 +1,18 @@
+// Source code: https://github.com/katspaugh/wavesurfer.js/blob/fa2bcfe/src/plugins/regions.ts
+
+import RegionsPlugin, {
+  RegionsPluginOptions,
+} from "wavesurfer.js/dist/plugins/regions";
+
+class CustomRegionsPlugin extends RegionsPlugin {
+  public static create(options?: RegionsPluginOptions) {
+    return new RegionsPlugin(options);
+  }
+
+  constructor(options?: RegionsPluginOptions) {
+    super(options);
+    this["avoidOverlapping"] = () => {};
+  }
+}
+
+export default CustomRegionsPlugin;