[i18n] Untranslated strings in Dashboard, Fleet Management, and Connect views

[ajaym94]

Part of #20

Problem

The Dashboard, Fleet Management, and Connect pages contain hardcoded English strings that don't go through the translation system. Users who switch to any non-English language will see a mix of translated and untranslated text on these pages.

These are the first screens users see, so this has the highest visibility impact.

Affected files and strings

Dashboard cards

src/components/dashboard/FleetStatusCard.tsx

• "Fleet Status" (card title)
• "Total Drones" (label)
• Status labels: "Online", "In Mission", "Idle", "Returning", "Maintenance", "Offline"

src/components/dashboard/ActiveMissionsCard.tsx

• "Active Missions" (card title)
• "In Flight" (label)
• Suite labels: "Sentry", "Survey", "Agriculture", "Cargo", "SAR", "Inspection"
• "No active missions" (empty state)

src/components/dashboard/AlertsCountCard.tsx

• "Alerts" (card title)
• "Unacknowledged" (label)
• Alert levels: "Critical", "Warning"

src/components/dashboard/AvgBatteryCard.tsx

• "Fleet Battery" (card title)
• "Average", "low", "reporting", "Lowest:" (labels)

src/components/dashboard/AlertFeed.tsx

• "Recent Alerts" (card title)
• "No alerts" (empty state)

src/components/dashboard/DashboardOverview.tsx

• "Quick Actions" (section label)

Fleet Management

src/components/fleet/FleetToolbar.tsx

• Search placeholder: "Search drones..."
• Status filter options: "All Status", "Online", "In Mission", "Idle", "Returning", "Maintenance", "Offline"
• Suite filter options: "All Suites", "Sentry", "Survey", "Agriculture", "Cargo", "SAR", "Inspection"
• Sort options: "Sort: Name", "Sort: Status", "Sort: Battery", "Sort: Health"
• View modes: "Grid", "List", "Map"
• "Add Drone" (button)

Connect page

src/components/connect/ActiveConnections.tsx

• "No active connections. Connect a flight controller above." (help text)
• Transport labels: "USB", "WS"
• "ACTIVE" (badge)

src/components/connect/BuildPresetCard.tsx

• "details" (button)
• "No GPS" (status)
• Feature badges: "COMPUTE", "LIDAR", "MAG"

Notes

• Suite names like "Sentry" and "SAR" should be translated where the language has a natural equivalent. If a direct translation would sound forced, keep the English name and add a translated description.
• Status labels ("Online", "Offline", etc.) should definitely be translated since these are common words in all supported languages.
• "USB" and "WS" are technical abbreviations and should stay as-is.
• Feature badges like "COMPUTE", "LIDAR", "MAG" are technical terms and should stay as-is.

Expected approach

1. Add keys to locales/en.json under dashboard, fleet, and connect namespaces (some may already exist but aren't wired up)
2. Replace hardcoded strings with t() calls
3. Add translations for all 16 languages

[ajaym94]

Closed by PR #25 (merged) + follow-up commit c8520ef (quality fixes). All Dashboard, Fleet Management, and Connect view strings are now localized.