refactor(cookie): improve type annotations for document and headers

Author: pavankjadda

projects/ngx-cookie-service-ssr/src/lib/ssr-cookie.service.ts

@@ -270,7 +270,7 @@ export class SsrCookieService {
     }
 
     // Handle direct headers object access
-    const headers = this.request.headers as any;
+    const headers = this.request.headers;
     if (headers && typeof headers === 'object') {
       return headers['cookie'] || headers['Cookie'];
     }

projects/ngx-cookie-service/src/lib/cookie.service.ts

@@ -110,7 +110,7 @@ export class CookieService {
     }
 
     const cookies: Record<string, string> = {};
-    const document: any = this.document;
+    const document: Document = this.document;
 
     if (document.cookie && document.cookie !== '') {
       document.cookie.split(';').forEach((currentCookie: string) => {