packed buttons in markdown editor in another span

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

frontend/src/Components/MarkdownEditor.svelte

@@ -122,8 +122,10 @@
 {#if editing}
     <div class="boundary">
         <textarea bind:value={editValue.source} onkeyup={typed} autofocus={!simple}></textarea>
-        <button class="cancel" onclick={e => editing = false}>{t('cancel')}</button>
-        <button class="save" onclick={doSave}>{t('save')}</button>
+        <span class="buttons">
+            <button class="cancel" onclick={e => editing = false}>{t('cancel')}</button>
+            <button class="save" onclick={doSave}>{t('save')}</button>
+        </span>
     </div>
 {/if}
     <svelte:element this={type} {onclick} {oncontextmenu} class={{editable}} title={t('long_click_to_edit')} >{@html target(editValue.rendered)}</svelte:element>