Adds Scroll margin (microsoft#2157)

Author: Bashamega

baselines/dom.generated.d.ts

@@ -905,6 +905,7 @@ interface InputEventInit extends UIEventInit {
 interface IntersectionObserverInit {
     root?: Element | Document | null;
     rootMargin?: string;
+    scrollMargin?: string;
     threshold?: number | number[];
 }
 

baselines/ts5.5/dom.generated.d.ts

@@ -905,6 +905,7 @@ interface InputEventInit extends UIEventInit {
 interface IntersectionObserverInit {
     root?: Element | Document | null;
     rootMargin?: string;
+    scrollMargin?: string;
     threshold?: number | number[];
 }
 

baselines/ts5.6/dom.generated.d.ts

@@ -905,6 +905,7 @@ interface InputEventInit extends UIEventInit {
 interface IntersectionObserverInit {
     root?: Element | Document | null;
     rootMargin?: string;
+    scrollMargin?: string;
     threshold?: number | number[];
 }
 

inputfiles/removedTypes.jsonc

@@ -425,7 +425,6 @@
                 "members": {
                     "member": {
                         "delay": null, // Blink only as of 2024-07
-                        "scrollMargin": null, // Blink only as of 2024-07
                         "trackVisibility": null // Blink only as of 2024-07
                     }
                 }