### What problem does this PR solve?

add the nginx path `/api` for sdk handlers 

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

feat: Display mindmap in drawer #2247

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

### What problem does this PR solve?

feat: Dynamically change the background image on the search homepage
every day #2247

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

### What problem does this PR solve?

Related source file is in Windows/DOS format, they are format to Unix
format.

### Type of change

- [x] Refactoring

Signed-off-by: Jin Hai <haijin.chn@gmail.com>