📝 Improve getLocation set variable snippet (#1213)

Added location error handling.

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit


- **Refactor**
	- Updated location retrieval functionality:
		- Renamed function for clarity.
		- Enhanced location information to include latitude and longitude.
		- Improved error handling for smoother user experience.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

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Co-authored-by: Baptiste Arnaud <baptiste.arnaud95@gmail.com>

apps/docs/editor/blocks/logic/set-variable.mdx

@@ -127,17 +127,24 @@ This value block allows you to find the `Id` from `Ids` with the same index as `
 For this you can provide the following custom code:
 
 ```js
-function getPosition() {
+function getLocation() {
-  return new Promise((resolve, reject) => {
+  return new Promise((resolve) => {
     navigator.geolocation.getCurrentPosition(
-      (position) => resolve(position),
+      position => resolve(`${position.coords.latitude}, ${position.coords.longitude}`),
-      (error) => reject(error),
+      error => resolve("error"),
       { enableHighAccuracy: true, timeout: 5000 }
-    )
+    );
-  })
+  });
 }
 
-const coords = (await getPosition()).coords
+const coords = await getLocation();
 
-return `${coords.latitude}, ${coords.longitude}`
+// Check for error
+if (coords === "error") {
+  return "Unable to get location";
+}
+
+return coords;
 ```
+
+This custom function can only work when it is executed on the client browser so you need to make sure to enable the "Execute on client" option.