Fix comments cutting off the left side of wide characters

Autosize JS sets overflow hidden on textarea, the combination
of 0 x padding and monospace font caused some slight clipping

Changelog: fixed

app/assets/stylesheets/pages/note_form.scss

@@ -37,7 +37,7 @@
 
 .note-textarea {
   display: block;
-  padding: 10px 0;
+  padding: 10px 1px;
   color: $gl-text-color;
   font-family: $regular-font;
   border: 0;