fix: replace "application logic" with "app logic" in concept intro

https://claude.ai/code/session_01M6YRViV1SVqE9DoZwXMbbd

Author: claude

docs/technical/concept.md

@@ -5,7 +5,7 @@ outline: [2, 4]
 
 _The Architecture of abap2UI5_
 
-This article introduces the core pattern behind abap2UI5: HTML Over-the-Wire — adapted for the ABAP ecosystem. It shows how this approach cuts traditional frontend complexity by moving UI rendering and application logic to the backend. The result: faster development, simpler deployment, and a UI5 frontend shell that's purely a rendering engine.
+This article introduces the core pattern behind abap2UI5: HTML Over-the-Wire — adapted for the ABAP ecosystem. It shows how this approach cuts traditional frontend complexity by moving UI rendering and app logic to the backend. The result: faster development, simpler deployment, and a UI5 frontend shell that's purely a rendering engine.
 
 #### What is HTML Over-the-Wire?