### 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>
