Update doc screenshots (#20160)

fixes
https://discord.com/channels/1130383047699738754/1496579088889024542

packages/twenty-docs/developers/extend/apps/getting-started.mdx

@@ -92,7 +92,7 @@ Dev mode is only available on Twenty instances running in development (`NODE_ENV
 </Warning>
 
 <div style={{textAlign: 'center'}}>
-  <img src="/images/docs/developers/extends/apps/dev.jpg" alt="Dev mode terminal output" />
+  <img src="/images/docs/developers/extends/apps/dev.png" alt="Dev mode terminal output" />
 </div>
 
 #### One-shot sync with `yarn twenty dev --once`
@@ -127,13 +127,7 @@ Click on **My twenty app** to open its **application registration**. A registrat
 Click **View installed app** to see the installed app. The **About** tab shows the current version and management options:
 
 <div style={{textAlign: 'center'}}>
-  <img src="/images/docs/developers/extends/apps/app-in-ui-3.png" alt="Installed app — About tab" />
-</div>
-
-Switch to the **Content** tab to see everything your app provides — objects, fields, logic functions, and agents:
-
-<div style={{textAlign: 'center'}}>
-  <img src="/images/docs/developers/extends/apps/app-in-ui-4.png" alt="Installed app — Content tab" />
+  <img src="/images/docs/developers/extends/apps/app-in-ui-3.png" alt="Installed app" />
 </div>
 
 You are all set! Edit any file in `src/` and the changes will be picked up automatically.