BIT-2344: Update user agent app name

[matt-livefront]

🎟️ Tracking

BIT-2344

📔 Objective

Updates user agent app name to match the Xamarin/Maui app.

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Protected functional changes with optionality (feature flags)
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation (Confluence, contributing docs) 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

[github-actions]

	1 Warning
⚠️	Ignoring duplicate libraries: '-lbitwarden_uniffi'

Bitwarden code coverage

Total coverage: 86.46%

File	Coverage
BitwardenShared/Core/Platform/Services/API/APIService.swift	100.00%

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Checkmarx One – Scan Summary & Details – fb2d978d-42c4-4389-8ad2-c0e6668acf79

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