[PM-17354] feat: allow using non-numeric characters within PIN

[mu88]

Relates to https://community.bitwarden.com/t/mobile-support-for-alphanumeric-pin-codes/27671

🎟️ Tracking

https://community.bitwarden.com/t/mobile-support-for-alphanumeric-pin-codes/27671

📔 Objective

As there are quite some feature requests to allow using non-numeric characters within the PIN, I thought I give it a shot and propose my desired change as a PR. Please bear with me if this violates one of your processes - I'm happy to learn and adapt 🙂

📸 Screenshots

It's just the same, just with the keyboard offering all characters.

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation or informed the documentation team

🦮 Reviewer guidelines

• 👍 (:+1:) or similar for great changes
• 📝 (:memo:) or ℹ️ (:information_source:) for notes or general info
• ❓ (:question:) for questions
• 🤔 (:thinking:) or 💭 (:thought_balloon:) for more open inquiry that's not quite a confirmed
  issue and could potentially benefit from discussion
• 🎨 (:art:) for suggestions / improvements
• ❌ (:x:) or ⚠️ (:warning:) for more significant problems or concerns needing attention
• 🌱 (:seedling:) or ♻️ (:recycle:) for future improvements or indications of technical debt
• ⛏ (:pick:) for minor or nitpick changes

[bitwarden-bot]

Thank you for your contribution! We've added this to our internal Community PR board for review.
ID: PM-17354