Add "Self-hosted Chrome Sync server"

[loyalpartner]

 # software name                                                                                                                       
 name: "selfsync"              
 # URL of the software project's homepage                                                                                            
 website_url: "https://github.com/loyalpartner/selfsync"                                                                               
 # URL where the full source code of the program can be downloaded
 source_code_url: "https://github.com/loyalpartner/selfsync"                                                                           
 # description of what the software does, shorter than 250 characters, sentence case                                                   
 description: "Self-hosted Chrome Sync server that keeps bookmarks, passwords, preferences and other browser data in sync across     
 devices without sending anything to Google, implementing the Chrome Sync protocol with local SQLite storage."                         
 # list of license identifiers 
 licenses:                                                                                                                             
   - GPL-3.0-or-later          
 # list of languages/platforms                                                                                                       
 platforms:                                                                                                                            
   - Rust
   - Docker                                                                                                                            
 # list of tags (categories) — maintainers please re-slot if a better tag exists
 tags:                                                                                                                                 
   - Bookmarks and Link Sharing
 # whether the software depends on a third-party service outside the user's control                                                    
 depends_3rdparty: false       

• Submit one item per issue.
• You have searched the repository for any relevant issues or PRs, including closed ones.
• Any software you are adding is not already listed at awesome-sysadmin / staticgen.com / staticsitegenerators.bevry.me / dbdb.io.
• Any software project you are adding to the list is actively maintained.
• Any software project you are adding was first released more than 4 months ago.
• Any software project you are adding has working installation instructions.