feat(polls): removable options + tidier editor layout
Each poll option is now its own row with a ✕ remove button (hidden at the
2-option minimum, add capped at 8); the "+ Add option" button sits on its own
line above a stacked "multiple choices" checkbox, matching the rest of the
options panel. Inline styles moved to a scoped block.
- src/views/pages/post-edit.ejs — option rows with remove buttons, .pe-poll-*
styles, refresh() enforces min-2/max-8; add button is block-level.
- src/services/i18n.js — pedit.poll_remove (nl/en/de).
Co-Authored-By: Claude <noreply@…>