Don't show invisibles from inlays (#32088)

Closes #24266

Release Notes:

- Whitespace added by inlay hints is no longer shown when
`"show_whitespaces": "all"` is used.

-

crates/editor/src/display_map/inlay_map.rs

@@ -336,6 +336,7 @@ impl<'a> Iterator for InlayChunks<'a> {
                 Chunk {
                     text: chunk,
                     highlight_style,
+                    is_inlay: true,
                     ..Default::default()
                 }
             }