fix: enhance layout consistency in DeviceInfo.page and DiskSettings.page

- Added spacing between hidden input fields and surrounding elements for improved layout consistency.
- This change continues the effort to enhance visual consistency across the plugin.

emhttp/plugins/dynamix/DeviceInfo.page

@@ -1380,6 +1380,7 @@ _(xfs_repair status)_:
 <input type="hidden" name="#cleanup" value="true">
 <input type="hidden" name="smEvents" value="">
 <input type="hidden" name="smGlue"   value="<?=_var($var,'smGlue')?>">
+
 <?if (_var($disk,'rotational',1)==1):?>
 _(Warning disk temperature threshold)_ (&deg;<?=_var($display,'unit','C')?>):
 <?elseif (_var($disk,'transport')=='nvme'):?>

emhttp/plugins/dynamix/DiskSettings.page

@@ -281,6 +281,7 @@ _(Default critical SSD temperature threshold)_ (&deg;<?=_var($display,'unit','C'
 <input type="hidden" name="olddata" value="">
 <input type="hidden" name="oldluks" value="">
 <?endif;?>
+
 _(Existing encryption key)_:
 : <select name="oldinput" class="lock" onchange='selectInput(this.value,true)' <?=$keyfile?'disabled':''?>>
   <?=mk_option(1,'text',_('Passphrase'))?>
@@ -335,6 +336,7 @@ _(Select new keyfile)_:
 <input type="hidden" name="#top" value="1">
 <input type="hidden" name="smEvents" value="">
 <input type="hidden" name="smIndex" value="0">
+
 _(Default SMART notification value)_:
 : <select name="smSelect">
   <?=mk_option(_var($var,'smSelect'), "0", _('Raw'))?>