Extract Prisma support into an extension (#9820)

This PR extracts Prisma support into an extension and removes the
built-in Prisma support from Zed.

Release Notes:

- Removed built-in support for Prisma, in favor of making it available
as an extension. The Prisma extension will be suggested for download
when you open a `.prisma` file.

Cargo.toml

@@ -97,8 +97,9 @@ members = [
 
     "extensions/gleam",
     "extensions/haskell",
-    "extensions/uiua",
+    "extensions/prisma",
     "extensions/svelte",
+    "extensions/uiua",
 
     "tooling/xtask",
 ]
@@ -311,7 +312,6 @@ tree-sitter-nix = { git = "https://github.com/nix-community/tree-sitter-nix", re
 tree-sitter-nu = { git = "https://github.com/nushell/tree-sitter-nu", rev = "7dd29f9616822e5fc259f5b4ae6c4ded9a71a132" }
 tree-sitter-ocaml = { git = "https://github.com/tree-sitter/tree-sitter-ocaml", rev = "4abfdc1c7af2c6c77a370aee974627be1c285b3b" }
 tree-sitter-php = "0.21.1"
-tree-sitter-prisma-io = { git = "https://github.com/victorhqc/tree-sitter-prisma" }
 tree-sitter-proto = { git = "https://github.com/rewinfrey/tree-sitter-proto", rev = "36d54f288aee112f13a67b550ad32634d0c2cb52" }
 tree-sitter-purescript = { git = "https://github.com/postsolar/tree-sitter-purescript", rev = "v0.1.0" }
 tree-sitter-python = "0.20.2"