Add translations for Flow

[ildyria]

This pull request introduces new translation files for the "Flow Page" feature in 20 different languages. Each file contains key-value pairs for localized strings used on the Flow Page, ensuring multilingual support for the feature.

Translation Additions:

• Added flow.php translation files for the following languages:
  • Arabic (lang/ar/flow.php)
  • Czech (lang/cz/flow.php)
  • German (lang/de/flow.php)
  • Greek (lang/el/flow.php)
  • English (lang/en/flow.php)
  • Spanish (lang/es/flow.php)
  • French (lang/fr/flow.php)
  • Hungarian (lang/hu/flow.php)
  • Italian (lang/it/flow.php)
  • Japanese (lang/ja/flow.php)
  • Dutch (lang/nl/flow.php)
  • Norwegian (lang/no/flow.php)
  • Polish (lang/pl/flow.php)
  • Portuguese (lang/pt/flow.php)
  • Russian (lang/ru/flow.php)
  • Slovak (lang/sk/flow.php)
  • Swedish (lang/sv/flow.php)
  • Vietnamese (lang/vi/flow.php)
  • Simplified Chinese (lang/zh_CN/flow.php)
  • Traditional Chinese (lang/zh_TW/flow.php)

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 90.11%. Comparing base (65575a0) to head (6e62ea8). Report is 1 commits behind head on flow/frontend.

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