fix: 1、fix mock-data.ts; 2、Add custom watermark content; 3、Add hover animation to the header toolbar; 4、Fix the uncheck bug of the tree component; 5、The segmented component of the preference-drawer has added a fixed tabs header style; 6、input-item component has added the clear function and placeholder.

fix: 1、fix mock-data.ts; 2、Add custom watermark content; 3、Add hover animation to the header toolbar; 4、Fix the uncheck bug of the tree component; 5、The segmented component of the preference-drawer has added a fixed tabs header style; 6、input-item component has added the clear function and placeholder. #1638