SOC-3529 | [Feature Unified Search] Search connector doesnt work properly with japanese data

Conflicts:
	component/core/src/main/java/org/exoplatform/social/core/storage/impl/SpaceStorageImpl.java
	component/core/src/main/java/org/exoplatform/social/core/storage/impl/StorageUtils.java
	component/core/src/test/java/org/exoplatform/social/core/storage/StorageUtilsTest.java