docs: remove "Mobile" from safeAreaInsets comment

Safe area insets apply on web as well, not just mobile devices.

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Co-Authored-By: Claude <[email protected]>

Author: antonpk1

specification/draft/apps.mdx

@@ -424,7 +424,7 @@ interface HostContext {
     touch?: boolean;
     hover?: boolean;
   }
-  /** Mobile safe area boundaries in pixels */
+  /** Safe area boundaries in pixels */
   safeAreaInsets?: {
     top: number;
     right: number;

src/types.ts

@@ -475,8 +475,8 @@ export interface McpUiHostContext {
     hover?: boolean;
   };
   /**
-   * Mobile safe area boundaries in pixels.
-   * Used to avoid notches, rounded corners, and system UI on mobile devices.
+   * Safe area boundaries in pixels.
+   * Used to avoid notches, rounded corners, and system UI.
    */
   safeAreaInsets?: {
     /** Top safe area inset in pixels */