fix: remove trailing whitespace from modified files

Author: huhn511

docs/UI_Customization.md

@@ -100,7 +100,7 @@ The application supports a flexible theme system with user preference persistenc
    ```bash
    # Only allow light mode (remove theme toggle)
    VITE_UI_THEME_OPTIONS=light
-   
+
    # Support both themes (default)
    VITE_UI_THEME_OPTIONS=light,dark
    ```
@@ -119,10 +119,10 @@ The application supports a flexible theme system with user preference persistenc
    ```bash
    # Bot customization
    VITE_BOT_NAME=Development Bot
-   
+
    # Logo customization
    VITE_UI_LOGO_PATH=/assets/dev-logo.svg
-   
+
    # Theme customization
    VITE_UI_THEME_DEFAULT=light
    VITE_UI_THEME_OPTIONS=light,dark

services/frontend/libs/shared/README.md

@@ -45,7 +45,7 @@ import { settings } from '@/libs/shared/settings';
   <NavigationContainer>
     <!-- Navigation content -->
   </NavigationContainer>
-  
+
   <SideBarContainer header="Documents" count="5">
     <!-- Sidebar content -->
   </SideBarContainer>