fix(pdf): use the trip's actual currency instead of hardcoded EUR (#1519)

* fix(pdf): use the trip's actual currency instead of hardcoded EUR

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(i18n): drop hardcoded currency text from pdf.costLabel across locales

Remove redundant EUR/currency references from pdf.costLabel translations
across 21 locales now that the PDF export correctly renders amounts
with their actual trip currency via formatMoney().

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(pdf): drop hardcoded euro-shaped icon from place price chip

svgEuro rendered a fixed € glyph next to the price chip regardless of
the trip's actual currency, undermining the currency fix. Swap for a
currency-neutral coin icon.

---------

Co-authored-by: Nguyen Trong Binh <nguytb15@VN1N07HO1CD1015.local>
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>

shared/src/i18n/ja/pdf.ts

@@ -3,7 +3,7 @@ import type { TranslationStrings } from '../types';
 const pdf: TranslationStrings = {
   'pdf.travelPlan': '旅行計画',
   'pdf.planned': '予定',
-  'pdf.costLabel': '費用（EUR）',
+  'pdf.costLabel': '費用',
   'pdf.preview': 'PDFプレビュー',
   'pdf.saveAsPdf': 'PDFとして保存',
 };