Revert the commit that broke Zed display capabilities (#7326)

crates/gpui/src/app.rs

@@ -652,20 +652,27 @@ impl AppContext {
                     }
                 }
             } else {
+                for window in self.windows.values() {
+                    if let Some(window) = window.as_ref() {
+                        if window.dirty {
+                            window.platform_window.invalidate();
+                        }
+                    }
+                }
+
                 #[cfg(any(test, feature = "test-support"))]
                 for window in self
                     .windows
                     .values()
                     .filter_map(|window| {
                         let window = window.as_ref()?;
-                        window.dirty.get().then_some(window.handle)
+                        (window.dirty || window.focus_invalidated).then_some(window.handle)
                     })
                     .collect::<Vec<_>>()
                 {
                     self.update_window(window, |_, cx| cx.draw()).unwrap();
                 }
 
-                #[allow(clippy::collapsible_else_if)]
                 if self.pending_effects.is_empty() {
                     break;
                 }
@@ -742,7 +749,7 @@ impl AppContext {
     fn apply_refresh_effect(&mut self) {
         for window in self.windows.values_mut() {
             if let Some(window) = window.as_mut() {
-                window.dirty.set(true);
+                window.dirty = true;
             }
         }
     }