fix(pitch-deck): remove Use of Funds, GTM slide; move Assumptions after Finanzplan

- Remove Use of Funds card from The Ask slide
- Remove Go-to-Market slide from deck
- Move Annahmen & Sensitivität after Finanzplan in slide order
- Update sidebar names in both DE and EN

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

pitch-deck/lib/i18n.ts

@@ -27,15 +27,14 @@ const translations = {
       'Investition & Cap Table',
       'Kundenersparnis',
       'KI Q&A',
-      'Anhang: Annahmen',
       'Anhang: Architektur',
-      'Anhang: Go-to-Market',
       'Anhang: Regulatorik',
       'Anhang: Engineering',
       'Anhang: KI-Pipeline',
       'Anhang: SDK Demo',
       'Anhang: Strategie',
       'Anhang: Finanzplan',
+      'Anhang: Annahmen',
       'Glossar',
       'Risiken & Mitigation',
       'Rechtlicher Hinweis',
@@ -325,15 +324,14 @@ const translations = {
       'Investment & Cap Table',
       'Customer Savings',
       'AI Q&A',
-      'Appendix: Assumptions',
       'Appendix: Architecture',
-      'Appendix: Go-to-Market',
       'Appendix: Regulatory',
       'Appendix: Engineering',
       'Appendix: AI Pipeline',
       'Appendix: SDK Demo',
       'Appendix: Strategy',
       'Appendix: Financial Plan',
+      'Appendix: Assumptions',
       'Glossary',
       'Risks & Mitigation',
       'Legal Notice',