Merge branch 'fb-DSS-2776-X-Frame-Option-in-Doc-web' into 'main'

DSS-2776: SignServer Doc exported from the new confluence doesn't work with X-Frame-Options = DENY

Closes DSS-2776

See merge request signserver/signserver!336

signserver/modules/SignServer-Doc-web/src/main/webapp/WEB-INF/web.xml

@@ -6,7 +6,7 @@
         <filter-class>org.signserver.web.common.owasp.filters.ClickjackFilter</filter-class>
         <init-param>
             <param-name>mode</param-name>
-            <param-value>DENY</param-value>
+            <param-value>SAMEORIGIN</param-value>
         </init-param>
     </filter>
     <filter>