Don't show documentation field in site documents

webgis/js/components/SiteDocuments.js

@@ -13,6 +13,14 @@ export class SiteDocuments {
     }
 
     render() {
+        if (this._siteData.documents.length === 0) {
+            return `
+                <p class="p-2 has-text-centered mt-3 mb-3">
+                    Nessuna documentazione disponibile.
+                </p>
+            `;
+        }
+
         this.documentation = this._siteData.documents
             .filter(d => d.type === 'documentazione')
         
@@ -20,9 +28,6 @@ export class SiteDocuments {
 
         let content = `
             <div class="has-bottom-border">
-                <p class="p-2 has-text-centered mt-3 mb-3">
-                    ${this._siteData.documentation}
-                </p>
                 <div class="p-2">
                     <table class="p-4 table is-fullwidth is-striped">
                         <thead>