More suggestions based on version 1.0.1 of the CJK plugin #754

I installed and tested the functionality of version 1.0.1 of the CJK plugin, and there has been some improvement on the issues mentioned before.

However, in the symbol interface that expands from the bottom left corner of the keyboard, I think some symbols can be adjusted. For example, symbols like "#", "￥", and "&" could be replaced with symbols more commonly used in Chinese, such as book title quotation marks.

In addition, I suggest that when inputting paired punctuation marks, such as "()", after typing "(", the corresponding ")" could be automatically completed. The same goes for the book title quotation marks mentioned above.

Also, I'm not quite sure how to describe the small symbols at the top right corner of the keyboard keys. Simply put, they are symbols that can only be entered by long-pressing, but I hope they can be input directly by sliding up on the key. This can save a lot of input time because long-pressing requires holding for a while.

LeanType v4.3.0（standard）；CJK v1.0.1