implemented option to allow guests to see wiki page

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

frontend/src/routes/wiki/View.svelte

@@ -107,6 +107,12 @@
         return loadContent(res);
     }
 
+    async function patchGuestPermissions(ev){
+        let data = {guest_allowed:page.guest_allowed};
+        console.log(data);
+        return patch(data);
+    }
+
     async function patchTitle(t){
         var result = await(patch({title:t}));
         router.navigate(`/wiki/${page.id}/view`);
@@ -146,6 +152,10 @@
     {#if detail}
     {#if editable}
     <PermissionEditor members={page.members} {addMember} {dropMember} {getCandidates} {updatePermission} />
+    <label>
+        <input type="checkbox" bind:checked={page.guest_allowed} onchange={patchGuestPermissions} />
+        {t('visible_to_guests')}
+    </label>
     {:else}
     <table>
         <thead>