Allow preview for empty body in ExtendedTextarea — radicle-desktop

Instead of disabling the preview feature when the body is empty, we show Nothing to preview

     padding: 0.75rem;
     margin-left: 1px;
     margin-top: 1px;
     flex: 1;
   }
 </style>
 <div class="comment-section" aria-label="extended-textarea" class:inline>
   {#if preview}
     <div class="preview">
       <Markdown {rid} breaks content={body} />
       {#if body.trim().length === 0}
         <span class="txt-missing">Nothing to preview.</span>
       {:else}
         <Markdown {rid} breaks content={body} />
       {/if}
     </div>
   {:else}
     <Textarea

         <Icon name="attachment" />
         Attach
       </OutlineButton>
       <OutlineButton
         variant="ghost"
         disabled={body.trim() === ""}
         onclick={() => (preview = !preview)}>
       <OutlineButton variant="ghost" onclick={() => (preview = !preview)}>
         <Icon name={preview ? "pen" : "eye"} />
         {preview ? "Edit" : "Preview"}
       </OutlineButton>

   <div class="content">
     {#if preview}
       <div class="title">
         <InlineTitle content={title} fontSize="medium" />
         {#if title.trim().length === 0}
           <span class="txt-missing">No title</span>
         {:else}
           <InlineTitle content={title} fontSize="medium" />
         {/if}
       </div>
     {:else}
       <div style:margin-bottom="1rem">