Set appid/wmclass for zed window (#10909)

fixes https://github.com/zed-industries/zed/issues/9132

By setting the app id, window managers like `sway` can apply custom
configuration like `for_window [app_id="zed"] floating enable`.
Tested using `wlprop`/`hyprctl activewindow` for wayland, `xprop` for
x11.


Release Notes:

- Zed now sets the window app id / class, which can be used e.g. in
window managers like `sway`/`i3` to define custom rules

crates/semantic_index/src/chunking.rs

@@ -188,6 +188,7 @@ mod tests {
                         kind: WindowKind::PopUp,
                         is_movable: false,
                         fullscreen: false,
+                        app_id: None,
                     }
                 };
 
@@ -239,7 +240,7 @@ mod tests {
         // The break between chunks is right before the "Specify the display_id" comment
 
         assert_eq!(chunks[1].range.start, 1498);
-        assert_eq!(chunks[1].range.end, 2396);
+        assert_eq!(chunks[1].range.end, 2434);
     }
 
     #[test]