Extract TOML support into an extension (#9940)

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

There's a small workaround necessary in order for us to set the file
permissions on the `taplo` binary so that it can be run. Eventually
we'll want to build this into the extension API, but for now we're just
hard-coding it on the host side.

Release Notes:

- Removed built-in support for TOML, in favor of making it available as
an extension. The TOML extension will be suggested for download when you
open a `.toml` or `Cargo.lock` file.

crates/languages/src/lib.rs

@@ -32,7 +32,6 @@ mod ruby;
 mod rust;
 mod tailwind;
 mod terraform;
-mod toml;
 mod typescript;
 mod vue;
 mod yaml;
@@ -99,7 +98,6 @@ pub fn init(
         ("ruby", tree_sitter_ruby::language()),
         ("rust", tree_sitter_rust::language()),
         ("scheme", tree_sitter_scheme::language()),
-        ("toml", tree_sitter_toml::language()),
         ("tsx", tree_sitter_typescript::language_tsx()),
         ("typescript", tree_sitter_typescript::language_typescript()),
         ("vue", tree_sitter_vue::language()),
@@ -236,7 +234,6 @@ pub fn init(
         vec![Arc::new(rust::RustLspAdapter)],
         RustContextProvider
     );
-    language!("toml", vec![Arc::new(toml::TaploLspAdapter)]);
     match &DenoSettings::get(None, cx).enable {
         true => {
             language!(