feat: added Accelerometer screen

[Vidhijain20]

Adds the Accelerometer screen.

Screenshots / Recordings

Checklist:

• No hard coding: I have used resources from strings.xml, dimens.xml and colors.xml without hard coding any value.
• No end of file edits: No modifications done at end of resource files strings.xml, dimens.xml or colors.xml.
• Code reformatting: I have reformatted code and fixed indentation in every file included in this pull request.
• No extra space: My code does not contain any extra lines or extra spaces than the ones that are necessary.

Summary by Sourcery

Add a new Accelerometer screen and its widgets to display live accelerometer data and integrate it into the app’s navigation flow.

New Features:

• Introduce Accelerometer screen showing live x, y, and z axis readings with min, max, and graph visualization.
• Implement AccelerometerCard widget that subscribes to accelerometer events and plots them using FLChart.

Enhancements:

• Register '/accelerometer' route in main app and update instruments screen to navigate to the Accelerometer screen.

Build:

• Add sensors_plus dependency for accelerometer data acquisition.

[sourcery-ai]

Reviewer's Guide

Introduces a new Accelerometer screen with real-time sensor data visualization, updates navigation logic to include the accelerometer route, and manages dependencies and routing.

File-Level Changes

Change	Details	Files
Enhanced instruments screen navigation to support the accelerometer screen	Added case 7 in tap handler Checked existing route and used popUntil for '/accelerometer' Fallback to pushNamedAndRemoveUntil for '/accelerometer'	lib/view/instruments_screen.dart
Registered the new accelerometer route in app routing	Imported AccelerometerScreen Added '/accelerometer' entry to routes map	lib/main.dart
Added sensors_plus package for accelerometer data	Declared sensors_plus:^6.1.1 under dependencies	pubspec.yaml
Created AccelerometerCard widget for live data charts	Subscribed to accelerometerEventStream and updated state Tracked current, min, and max values per axis Rendered line chart with fl_chart and axis labels Structured UI with image, values, and chart in a Card	lib/view/widgets/accelerometer_card.dart
Built AccelerometerScreen to host three axis cards	Used CommonScaffold with title 'Accelerometer' Placed three AccelerometerCard instances for x, y, z axes in a column	lib/view/accelerometer_screen.dart

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[github-actions]

Build successful. APKs to test: https://github.com/fossasia/pslab-android/actions/runs/15422632290/artifacts/3251864484

[Vidhijain20]

@AsCress @CloudyPadmal Could you please review this?