Adjust Zed badge (#35290)

- Inline badges
- Set label background fill color to black
- Uppercase Zed text
- Remove gray padding

Release Notes:

- N/A

README.md

@@ -1,7 +1,6 @@
 # Zed
 
-[![zed](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/zed-industries/zed/main/assets/badge/v0.json)](https://zed.dev)
-
+[![Zed](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/zed-industries/zed/main/assets/badge/v0.json)](https://zed.dev)
 [![CI](https://github.com/zed-industries/zed/actions/workflows/ci.yml/badge.svg)](https://github.com/zed-industries/zed/actions/workflows/ci.yml)
 
 Welcome to Zed, a high-performance, multiplayer code editor from the creators of [Atom](https://github.com/atom/atom) and [Tree-sitter](https://github.com/tree-sitter/tree-sitter).