Release Notes: - Added support for showing file icons for files without suffixes. Before: <img width="281" alt="image" src="https://github.com/zed-industries/zed/assets/25414681/ab4c00ed-72c7-458f-8dda-61c68165590f"> After: <img width="242" alt="Screenshot 2024-02-27 at 1 51 20 AM" src="https://github.com/zed-industries/zed/assets/25414681/8f3082c4-9424-4bc3-9100-a527b9adc315"> This screenshot is to show if the file has extension, then the extension takes precedence. <img width="193" alt="image" src="https://github.com/zed-industries/zed/assets/25414681/72fcebd1-361f-444b-8890-f59932963083"> <br> - Added icons for - Docker - https://www.svgrepo.com/svg/473589/docker - License - https://www.svgrepo.com/svg/477704/license-1 - Heroku - https://www.svgrepo.com/svg/341904/heroku - Updated tests
