ui: updated spacing issue and typo

examples/server/public/index.html

@@ -769,12 +769,12 @@
       useEffect(() => {
         // autosave template on every change
         userTemplateAutosave()
-      }, [session.value])// removed params.value as it would re render the page.
+      }, [session.value])
 
       const GrammarControl = () => (
         html`
         <details>
-        <summary>Grammer Configuration</summary>
+        <summary>Grammar Configuration</summary>
           <label for="template">Grammar</label>
           <textarea id="grammar" name="grammar" placeholder="Use gbnf or JSON Schema+convert" value="${params.value.grammar}" rows=4 oninput=${updateParams}/>
           <input  type="text" name="prop-order" placeholder="order: prop1,prop2,prop3" oninput=${updateGrammarJsonSchemaPropOrder} />
@@ -884,7 +884,7 @@
       )
 
       if (props?.header)
-        return html`<${ModeSelector} />`
+        return ModeSelector()
 
       return html`
       <form class="flexform">