Fix Incorrect Typing for Margins in the TableConfig Interface Definition (#3816)

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Co-authored-by: Lukas Holländer <lukas.hollaender@yworks.com>

Author: Maito1794

types/index.d.ts

@@ -607,7 +607,12 @@ declare module "jspdf" {
   export interface TableConfig {
     printHeaders?: boolean;
     autoSize?: boolean;
-    margins?: number;
+    margins?: {
+      top: number;
+      bottom: number;
+      left: number;
+      width: number;
+    };
     fontSize?: number;
     padding?: number;
     headerBackgroundColor?: string;