Limit the extension tasks in the modal to current language only (#10207)

Release Notes:

- N/A

crates/language/src/language.rs

@@ -55,9 +55,7 @@ use std::{
     },
 };
 use syntax_map::SyntaxSnapshot;
-pub use task_context::{
-    ContextProvider, ContextProviderWithTasks, LanguageSource, SymbolContextProvider,
-};
+pub use task_context::{ContextProvider, ContextProviderWithTasks, SymbolContextProvider};
 use theme::SyntaxTheme;
 use tree_sitter::{self, wasmtime, Query, WasmStore};
 use util::http::HttpClient;