Final sandbox updates

docs/tutorials/essentials/part-3-data-flow.md

@@ -643,6 +643,16 @@ Remember, **the Redux store should only contain data that's considered "global"
 
 ## What You've Learned
 
+We've set up the basics of a Redux app - store, slice with reducers, and UI to dispatch actions. Here's what the app looks like so far:
+
+<iframe
+  class="codesandbox"
+  src="https://codesandbox.io/embed/github/reduxjs/redux-essentials-example-app/tree/ts-checkpoint-1-postAdded?fontsize=14&hidenavigation=1&module=%2fsrc%2Ffeatures%2Fposts%2FpostsSlice.ts&theme=dark&runonclick=1"
+  title="redux-essentials-example"
+  allow="geolocation; microphone; camera; midi; vr; accelerometer; gyroscope; payment; ambient-light-sensor; encrypted-media; usb"
+  sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"
+></iframe>
+
 Let's recap what you've learned in this section:
 
 :::tip Summary
@@ -664,16 +674,6 @@ Let's recap what you've learned in this section:
 
 :::
 
-Here's what the app looks like so far:
-
-<iframe
-  class="codesandbox"
-  src="https://codesandbox.io/embed/github/reduxjs/redux-essentials-example-app/tree/7f33de00afef79792250f314aa0da2d695ce2e8d?fontsize=14&hidenavigation=1&module=%2fsrc%2Ffeatures%2Fposts%2FpostsSlice.ts&theme=dark&runonclick=1"
-  title="redux-essentials-example"
-  allow="geolocation; microphone; camera; midi; vr; accelerometer; gyroscope; payment; ambient-light-sensor; encrypted-media; usb"
-  sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"
-></iframe>
-
 ## What's Next?
 
 Now that you know the basic Redux data flow, move on to [Part 4: Using Redux Data](./part-4-using-data.md), where we'll add some additional functionality to our app and see examples of how to work with the data that's already in the store.

docs/tutorials/essentials/part-4-using-data.md

@@ -1474,7 +1474,7 @@ Here's what our app looks like after all these changes:
 
 <iframe
   class="codesandbox"
-  src="https://codesandbox.io/embed/github/reduxjs/redux-essentials-example-app/tree/2b5a8361da115296107975a59155bc52a040d0a1?fontsize=14&hidenavigation=1&module=%2fsrc%2Ffeatures%2Fposts%2FpostsSlice.ts&theme=dark&runonclick=1"
+  src="https://codesandbox.io/embed/github/reduxjs/redux-essentials-example-app/tree/ts-checkpoint-2-authHandling?fontsize=14&hidenavigation=1&module=%2fsrc%2Ffeatures%2Fposts%2FpostsSlice.ts&theme=dark&runonclick=1"
   title="redux-essentials-example"
   allow="geolocation; microphone; camera; midi; vr; accelerometer; gyroscope; payment; ambient-light-sensor; encrypted-media; usb"
   sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"

docs/tutorials/essentials/part-5-async-logic.md

@@ -1108,7 +1108,7 @@ Here's what our app looks like now that we're fetching data from that fake API:
 
 <iframe
   class="codesandbox"
-  src="https://codesandbox.io/embed/github/reduxjs/redux-essentials-example-app/tree/58da61f83f6461e51e168a0d08c7fd7c9c9a5092?fontsize=14&hidenavigation=1&module=%2fsrc%2Ffeatures%2Fposts%2FpostsSlice.ts&theme=dark&runonclick=1"
+  src="https://codesandbox.io/embed/github/reduxjs/redux-essentials-example-app/tree/ts-checkpoint-3-postRequests?fontsize=14&hidenavigation=1&module=%2fsrc%2Ffeatures%2Fposts%2FpostsSlice.ts&theme=dark&runonclick=1"
   title="redux-essentials-example"
   allow="geolocation; microphone; camera; midi; vr; accelerometer; gyroscope; payment; ambient-light-sensor; encrypted-media; usb"
   sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"

docs/tutorials/essentials/part-6-performance-normalization.md

@@ -1596,7 +1596,7 @@ We've built a lot of new behavior in this section. Let's see what how the app lo
 
 <iframe
   class="codesandbox"
-  src="https://codesandbox.io/embed/github/reduxjs/redux-essentials-example-app/tree/b68c49bccc26768b913e6951b0b5cc3b759f3028?fontsize=14&hidenavigation=1&module=%2fsrc%2Ffeatures%2Fposts%2FpostsSlice.ts&theme=dark&runonclick=1"
+  src="https://codesandbox.io/embed/github/reduxjs/redux-essentials-example-app/tree/ts-checkpoint-4-listenerToasts?fontsize=14&hidenavigation=1&module=%2fsrc%2Ffeatures%2Fposts%2FpostsSlice.ts&theme=dark&runonclick=1"
   title="redux-essentials-example"
   allow="geolocation; microphone; camera; midi; vr; accelerometer; gyroscope; payment; ambient-light-sensor; encrypted-media; usb"
   sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"

docs/tutorials/essentials/part-7-rtk-query-basics.md

@@ -822,7 +822,7 @@ With RTK Query, the actual details of how to manage data fetching, caching, and
 
 <iframe
   class="codesandbox"
-  src="https://codesandbox.io/embed/github/reduxjs/redux-essentials-example-app/tree/ee4f86a206761f347e076086fc08524faac324b2?fontsize=14&hidenavigation=1&module=%2fsrc%2Ffeatures%2Fposts%2FpostsSlice.ts&theme=dark&runonclick=1"
+  src="https://codesandbox.io/embed/github/reduxjs/redux-essentials-example-app/tree/ts-checkpoint-5-createApi?fontsize=14&hidenavigation=1&module=%2fsrc%2Ffeatures%2Fposts%2FpostsSlice.ts&theme=dark&runonclick=1"
   title="redux-essentials-example"
   allow="geolocation; microphone; camera; midi; vr; accelerometer; gyroscope; payment; ambient-light-sensor; encrypted-media; usb"
   sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"

docs/tutorials/essentials/part-8-rtk-query-advanced.md

@@ -1426,7 +1426,7 @@ Let's take one last look at the whole application in action:
 
 <iframe
   class="codesandbox"
-  src="https://codesandbox.io/embed/github/reduxjs/redux-essentials-example-app/tree/feature/tutorial-steps-ts-post-review/?fontsize=14&hidenavigation=1&theme=dark&runonclick=1"
+  src="https://codesandbox.io/embed/github/reduxjs/redux-essentials-example-app/tree/ts-checkpoint-6-rtkqConversion?fontsize=14&hidenavigation=1&theme=dark&runonclick=1"
   title="redux-essentials-example-app"
   allow="geolocation; microphone; camera; midi; vr; accelerometer; gyroscope; payment; ambient-light-sensor; encrypted-media; usb"
   sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"