fix monitoring statistics and release safety

icon changes

Improved real-time Internet connection monitoring.
Added latency, public IP, uptime, disconnect, availability, and downtime metrics.
Added connection history, statistics, CSV export, and PDF reports.
Added configurable HTTPS probe URL and monitoring interval.
Added optional online/offline alert sounds.
Improved popup, dashboard, settings, and responsive layouts.
Added clearer status colors for online, connection issues, offline, and no-data states.
Improved Firefox toolbar icons and dark/light theme support.
Monitoring data remains stored locally in Firefox.

Some icon resolution fix

Removed Firefox for Android compatibility.
Improved monitoring behavior when settings change or monitoring is disabled.
Cancelled stale in-flight connection checks.
Fixed log clearing so monitoring continues recording correctly.
Improved CSV and PDF report exports.
Rebuilt and centered Mozilla listing icons.
Added stronger automated tests and CI validation.

• Fixed the toolbar icon appearing black in Firefox for Android dark mode.
• Fixed Android popup navigation for:
• Realtime monitor
• Connection log
• Connection statistics
• Settings
• Fixed missed-heartbeat periods being incorrectly counted as downtime.
• Sleep, background suspension, and unavailable monitoring periods are now recorded as No data.
• Fixed the status description being truncated on narrow screens.
• Clarified that statistics are stored locally per device.

This release supports Firefox desktop and Firefox for Android.