Allow formatting selections via LSP (#18752)

Release Notes:

- Added a new `editor: format selections` action that allows formatting
only the currently selected text via the primary language server.

---------

Co-authored-by: Thorsten Ball <mrnugget@gmail.com>

crates/project/src/project.rs

@@ -2505,10 +2505,11 @@ impl Project {
         buffers: HashSet<Model<Buffer>>,
         push_to_history: bool,
         trigger: lsp_store::FormatTrigger,
+        target: lsp_store::FormatTarget,
         cx: &mut ModelContext<Project>,
     ) -> Task<anyhow::Result<ProjectTransaction>> {
         self.lsp_store.update(cx, |lsp_store, cx| {
-            lsp_store.format(buffers, push_to_history, trigger, cx)
+            lsp_store.format(buffers, push_to_history, trigger, target, cx)
         })
     }