MASSIVE commit

- moved to typescript

- axios rate limitmodule is busted, removed for now, do something else for that

- sequelize-typescript

- dotenv, not dotenv-flow

- removed playlist details route

types for API

ton of minor fixes and improvements

utils/jsonTransformer.ts

@@ -0,0 +1,16 @@
+/** Stringifies only values of a JSON object, including nested ones */
+export const getNestedValuesString = (
+  obj: any,
+  delimiter: string = ", "
+): string => {
+  let values: string[] = [];
+  for (const key in obj) {
+    if (typeof obj[key] !== "object") {
+      values.push(obj[key]);
+    } else {
+      values = values.concat(getNestedValuesString(obj[key]));
+    }
+  }
+
+  return values.join(delimiter);
+};