Increase default app thread stack size (#3010)

core/config.h

@@ -397,7 +397,7 @@
 #define APP_THREAD_STACK_SIZE_DEFAULT (64 * 1024)
 #define APP_THREAD_STACK_SIZE_MIN (48 * 1024)
 #else
-#define APP_THREAD_STACK_SIZE_DEFAULT (64 * 1024)
+#define APP_THREAD_STACK_SIZE_DEFAULT (128 * 1024)
 #define APP_THREAD_STACK_SIZE_MIN (24 * 1024)
 #endif
 #endif /* end of !(defined(APP_THREAD_STACK_SIZE_DEFAULT) \