DOCSP-33485 Example Projects Page Update (#3049)

## Pull Request Info

- ObjectAsAPI (.NET)
- Flexible Sync Playground (Node.js)
- Connection State Change & Error Handling (React Native)
- Offline Support and Realm Access (React Native, Electron, Web, and
Node)

### Jira

- https://jira.mongodb.org/browse/DOCSP-33485

### Staged Changes

- [Example
Projects](https://preview-mongodblindseymoore.gatsbyjs.io/realm/DOCSP-33485/example-projects/)

### Reminder Checklist

If your PR modifies the docs, you might need to also update some
corresponding
pages. Check if completed or N/A.

- [ ] Create Jira ticket for corresponding docs-app-services update(s),
if any
- [ ] Checked/updated Admin API
- [ ] Checked/updated CLI reference

### Review Guidelines


[REVIEWING.md](https://github.com/mongodb/docs-realm/blob/master/REVIEWING.md)

Author: lindseymoore

source/example-projects.txt

@@ -32,14 +32,19 @@ Learn about the core features of Realm with Atlas Device Sync.
       - `Kotlin <https://github.com/realm/realm-kotlin-samples/tree/main/AppServicesUsageSamples/apps/error-handling>`__
       - `.NET <https://github.com/realm/realm-dotnet-samples/tree/main/QuickJournalSync>`__
       - `Node.js <https://github.com/realm/realm-js/tree/main/examples/node-connection-and-error>`__
+      - `React Native <https://github.com/realm/realm-js/tree/main/examples/rn-connection-and-error>`__
       - `Swift <https://github.com/realm/realm-swift-samples/tree/main/SyncConnectionStateErrorReset>`__
 
-  * - Offline Login and Realm Access
-    - Log in a Device Sync user and open a synced realm offline.
-    - - `Flutter <https://github.com/realm/realm-dart-samples/tree/kilochat/kilochat>`__
+  * - Offline Support and Realm Access
+    - Log in a Device Sync user, open a synced realm, and perform local-first reads and writes, all while offline.
+    - - `Electron <https://github.com/realm/realm-js/tree/main/examples/electron-todo-list>`__
+      - `Flutter <https://github.com/realm/realm-dart-samples/tree/kilochat/kilochat>`__
       - `Kotlin <https://github.com/realm/realm-kotlin-samples/tree/main/AppServicesUsageSamples/apps/property-encryption>`__
       - `.NET <https://github.com/realm/realm-dotnet-samples/tree/main/QuickJournalSync>`__
+      - `Node <https://github.com/realm/realm-js/tree/main/examples/node-connection-and-error>`__
+      - `React Native <https://github.com/realm/realm-js/tree/main/examples/rn-todo-list>`__
       - `Swift <https://github.com/realm/realm-swift-samples/tree/main/OfflineLoginRealmAccess>`__
+      - `Web <https://github.com/realm/realm-js/tree/nh/wasm/emscripten_target/examples/example-react-task>`__
 
   * - Template Apps
     - A todo list mobile app that syncs data with App Services using Device Sync. See
@@ -149,10 +154,18 @@ Check out these supplementary projects to build on the power of Realm with Atlas
     - Build an infinite runner game with Unity and the .NET Realm SDK. 
     - - `.NET <https://github.com/mongodb-developer/unity-infinite-runner>`__
 
+  * - ObjectsAsAPI
+    - Create specific Realm objects representing API calls ("objects-as-api") instead of REST API calls to execute business logic.
+    - - `.NET <https://github.com/realm/realm-dotnet-samples/tree/main/ObjectsAsAPI>`__
+
   * - Smart Factory Interface
     - Build an interface to order and produce a product based on stock availability, using the digital representation of a physical factory and computer vision.
     - - `.NET <https://github.com/mongodb-industry-solutions/smart-factory-computer-vision-inference>`__
 
+  * - Flexible Sync Playground
+    - Build a command line application to dynamically change sync subscriptions and fetch information about Realm database, including database schemas.
+    - - `Node.js <https://github.com/pmanna-tse-realm/flexisync-playground/tree/main>`__
+
   * - Vehicle Simulator and Controller
     - Build a connected platform to monitor vehicle analytics, using MongoDB Atlas and the AWS ecosystem. 
     - - `Node.js <https://github.com/mongodb-industry-solutions/Vehicle-Digital-Twin-Feedback-Loop>`__