fix: correctly transpile all client-side submodules (#3100)

Author: balazsorban44

config/babel.config.js

@@ -31,7 +31,12 @@ module.exports = (api) => {
     comments: false,
     overrides: [
       {
-        test: ["../src/react/index.tsx"],
+        test: [
+          "../src/react/index.tsx",
+          "../src/lib/logger.ts",
+          "../src/core/errors.ts",
+          "../src/client/**",
+        ],
         presets: [
           ["@babel/preset-env", { targets: { ie: 11 } }],
           ["@babel/preset-react", { runtime: "automatic" }],

src/core/errors.ts

@@ -1,5 +1,5 @@
-import { EventCallbacks, LoggerInstance } from ".."
-import { Adapter } from "../adapters"
+import type { EventCallbacks, LoggerInstance } from ".."
+import type { Adapter } from "../adapters"
 
 /**
  * Same as the default `Error`, but it is JSON serializable.