content: update EN+DE copy for pricing overhaul
EN changes:
- sup_meta_desc: remove "from €39/mo", lead with free listing + qualified leads
- sup_hero_cta / sup_cta_btn: "See Plans & Pricing" → "Get Started Free"
- sup_basic_dir: "Directory listing" → "Free forever"
- sup_basic_cta: "Get Listed" → "List Your Company Free"
- sup_yearly_note_basic: remove €349 price → "Free forever"
- sup_boosts_sub: add card color €59/mo note
- sup_faq_a2: update Basic from €39 to free, remove Basic yearly price
- sup_faq_q5/a5: rename to include Lead-Back Guarantee; add guarantee mechanic
New keys (EN + DE): sup_cta_btn, sup_basic_free_label, sup_pricing_eur_note,
sup_guarantee_h2/p/badge, sup_leads_section_h2/sub, sup_leads_unlock_cta,
sup_roi_line, sup_credits_only_pre/cta/post, sup_step1_free_forever,
sd_guarantee_btn/contact_label/email/phone/both/submit/success/window_error/already_claimed
DE: all above translated with native German register (du, compound nouns,
no calque constructions)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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