fix: Fast switch between selected instances (#4545)

## Description

Removes display etc fast switching changes on instance change. 

## Steps for reproduction

1. click button
2. expect xyz

## Code Review

- [ ] hi @kof, I need you to do
  - conceptual review (architecture, feature-correctness)
  - detailed review (read every line)
  - test it on preview

## Before requesting a review

- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")

## Before merging

- [ ] tested locally and on preview environment (preview dev login:
0000)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file

apps/builder/app/canvas/instance-selected.ts

@@ -247,11 +247,6 @@ const subscribeSelectedInstance = (
 
   let updateStoreTimeouHandle: undefined | ReturnType<typeof setTimeout>;
 
-  const updateStoresDebounced = () => {
-    clearTimeout(updateStoreTimeouHandle);
-    updateStoreTimeouHandle = setTimeout(updateStores, 100);
-  };
-
   const update = () => {
     debounceEffect(() => {
       updateElements();
@@ -262,9 +257,7 @@ const subscribeSelectedInstance = (
       // getBoundingClientRect is used instead.
       showOutline();
 
-      // Cause serious performance issues, use debounced version
-      // The result of stores is not needed immediately
-      updateStoresDebounced();
+      updateStores();
 
       // Having that elements can be changed (i.e. div => address tag change, observe again)
       updateObservers();