fix: update image URLs in Builder Dashboard documentation for dark mode

Author: Le-Caignec

src/overview/tooling-and-explorers/builder-dashboard.md

@@ -14,7 +14,7 @@ streamlines your development workflow and provides deep insights on your
 confidential iApps deployed on the protocol.
 
 <ImageViewer
-  image-url="/assets/tooling-&-explorers/builder-dashboard/builder-dashboard.png"
+  image-url-dark="/assets/tooling-&-explorers/builder-dashboard/builder-dashboard.png"
   image-alt="Builder Dashboard Overview"
   link-url="https://builder.iex.ec/"
   caption="🔗 Access the Builder Dashboard"
@@ -46,7 +46,7 @@ The first screen of the Builder Dashboard provides comprehensive voucher
 monitoring with detailed task execution history and real-time balance tracking.
 
 <ImageViewer
-  image-url="/assets/tooling-&-explorers/builder-dashboard/build-voucher-view.png"
+  image-url-dark="/assets/tooling-&-explorers/builder-dashboard/build-voucher-view.png"
   image-alt="Voucher Consumption Dashboard"
   link-url="https://builder.iex.ec/vouchers"
   caption="🔗 Access Voucher Dashboard"
@@ -105,7 +105,7 @@ The second screen provides comprehensive management and analytics for your
 deployed confidential iApps with detailed statistics and user insights.
 
 <ImageViewer
-  image-url="/assets/tooling-&-explorers/builder-dashboard/my-iapps-view.png"
+  image-url-dark="/assets/tooling-&-explorers/builder-dashboard/my-iapps-view.png"
   image-alt="My Confidential iApps Dashboard"
   link-url="https://builder.iex.ec/iapps"
   caption="🔗 Manage Your iApps"