prevent name change while editing and more fixes

ui/component/postEditor/view.jsx

@@ -74,7 +74,7 @@ function PostEditor(props: Props) {
           updatePublishForm({ fileText: text });
         }
       } catch (error) {
-        // Handle error..
+        console.error(error);
       }
     }
 
@@ -100,7 +100,7 @@ function PostEditor(props: Props) {
 
   return (
     <FormField
-      type={!SIMPLE_SITE && advancedEditor ? 'markdown' : 'textarea'}
+      type={'markdown'}
       name="content_post"
       label={label}
       placeholder={__('My content for this post...')}

ui/component/publishForm/view.jsx

@@ -277,10 +277,6 @@ function PublishForm(props: Props) {
     }
   }
 
-  function changePublishMode(modeName) {
-    setMode(modeName);
-  }
-
   // Update mode on editing
   useEffect(() => {
     if (autoSwitchMode && editingURI && myClaimForUri) {
@@ -304,7 +300,7 @@ function PublishForm(props: Props) {
             label={modeName}
             button="alt"
             onClick={() => {
-              changePublishMode(modeName);
+              setPublishMode(modeName);
             }}
             className={classnames('button-toggle', { 'button-toggle--active': mode === modeName })}
           />
@@ -363,9 +359,8 @@ function PublishForm(props: Props) {
               </React.Fragment>
             }
           />
-
           <PublishName
-            disabled={formDisabled}
+            disabled={isStillEditing || formDisabled}
             autoPopulateName={autoPopulateNameFromTitle}
             setAutoPopulateName={setAutoPopulateNameFromTitle}
           />

ui/component/publishName/name-help-text.jsx

@@ -17,7 +17,7 @@ function NameHelpText(props: Props) {
   let nameHelpText;
 
   if (isStillEditing) {
-    nameHelpText = __('You are currently editing this claim. If you change the URL, you will need to reselect a file.');
+    nameHelpText = __('You are currently editing this claim.');
   } else if (uri && myClaimForUri) {
     const editUri = buildURI({
       streamName: myClaimForUri.name,

ui/component/publishName/view.jsx

@@ -13,6 +13,7 @@ type Props = {
   uri: string,
   bid: number,
   balance: number,
+  disabled: boolean,
   isStillEditing: boolean,
   myClaimForUri: ?StreamClaim,
   isResolvingUri: boolean,
@@ -28,6 +29,7 @@ function PublishName(props: Props) {
     name,
     channel,
     uri,
+    disabled,
     isStillEditing,
     myClaimForUri,
     bid,
@@ -105,7 +107,14 @@ function PublishName(props: Props) {
                 !channel || channel === CHANNEL_ANONYMOUS || channel === CHANNEL_NEW ? '' : `${channel}/`
               }`}</div>
             </fieldset-section>
-            <FormField type="text" name="content_name" value={name} error={nameError} onChange={handleNameChange} />
+            <FormField
+              type="text"
+              name="content_name"
+              value={name}
+              disabled={disabled}
+              error={nameError}
+              onChange={handleNameChange}
+            />
           </fieldset-group>
           <div className="form-field__help">
             <NameHelpText