language servers: Fix wrong language server name (#20428)

This fixes the issue of multiple language servers showing up as `node`
in the language server logs dropdown.

It does this by changing `language_server.name()` to return the
adapter's name, not the binary name, and changing types to make sure
that we always use this.

Release Notes:

- Fixed language server names showing up only as `"node"`

---------

Co-authored-by: Sam Rose <hello@samwho.dev>
Co-authored-by: Bennet <bennet@zed.dev>

crates/languages/src/json.rs

@@ -6,10 +6,8 @@ use collections::HashMap;
 use futures::StreamExt;
 use gpui::{AppContext, AsyncAppContext};
 use http_client::github::{latest_github_release, GitHubLspBinaryVersion};
-use language::{
-    LanguageRegistry, LanguageServerName, LanguageToolchainStore, LspAdapter, LspAdapterDelegate,
-};
-use lsp::LanguageServerBinary;
+use language::{LanguageRegistry, LanguageToolchainStore, LspAdapter, LspAdapterDelegate};
+use lsp::{LanguageServerBinary, LanguageServerName};
 use node_runtime::NodeRuntime;
 use project::ContextProviderWithTasks;
 use serde_json::{json, Value};