Simplify Processing Mode selection UX.

Author: BigBlueHat

playground/next/editor.mjs

@@ -330,7 +330,7 @@ window.app = createApp({
   inputTab: 'json-ld',
   outputTab: 'expanded',
   options: {
-    processingMode: '',
+    processingMode: 'json-ld-1.1',
     base: '',
     compactArrays: true,
     compactToRelative: true,

playground/next/index.html

@@ -143,13 +143,6 @@ <h2 class="ui massive header">JSON-LD Playground</h2>
         <form class="ui form">
           <div class="inline fields" id="options-api-processingMode">
             <label for="options-api-processingMode" class="two wide field">Processing Mode</label>
-            <div class="field">
-              <div class="ui radio checkbox">
-                <input type="radio" id="options-api-processingMode-default" name="processingMode" value="" checked
-                  v-model="options.processingMode" @change="setOutputTab()">
-                <label for="options-api-processingMode-default">Default</label>
-              </div>
-            </div>
             <div class="field">
               <div class="ui radio checkbox">
                 <input type="radio" id="options-api-processingMode-1-0" name="processingMode" value="json-ld-1.0"