Fix button alignment by removing negative margin

Remove mr-[-3em] from AddLocationButton, AddMonthButton, and PrintButton
to improve visual alignment and spacing consistency.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/ui/AddLocationButton.tsx

@@ -18,7 +18,7 @@ export const AddLocationButton:React.FC<AddLocationButtonProps> = ({yearMonth})
     return(
         <div className="card card-compact card-bordered bg-base-100 shadow-s my-1">
             <Link href={`/location/${ formatYearMonth(yearMonth) }/add`} className="card-body tooltip self-center" data-tip={t("tooltip")}>
-                <span className='flex self-center mr-[-3em]'>
+                <span className='flex self-center'>
                     <HomeIcon className="h-[1em] w-[1em] cursor-pointer text-4xl" />
                     <PlusCircleIcon className="h-[1em] w-[1em] cursor-pointer text-xl text-green-500 ml-[-.6em] mt-[-.4em]"  />
                     <span className="ml-1 mt-[.4em] text-xs text-left leading-[1.2em] w-[6em]">{t("tooltip")}</span>