Handle error message properly in capacitor plugin

Author: tung2744

packages/authgear-capacitor/android/src/main/java/com/authgear/capacitor/AuthgearPlugin.java

@@ -493,7 +493,7 @@ private Integer readColorInt(PluginCall call, String key) {
     }
 
     private void reject(PluginCall call, Exception e) {
-        call.reject(e.getMessage(), e.getClass().getName(), e);
+        call.reject(e.getLocalizedMessage(), e.getClass().getName(), e);
     }
 
     private void rejectWithCancel(PluginCall call) {

packages/authgear-capacitor/src/error.ts

@@ -173,7 +173,8 @@ export function _wrapError(e: unknown): unknown {
       return err;
     }
   }
-  const err = new AuthgearError();
+  const message = typeof e === "object" ? (e as any).message : "";
+  const err = new AuthgearError(message);
   err.underlyingError = e;
   return err;
 }