Make android-app tutorial example qmllint clean


- Cast accel.reading to AccelerometerReading to access x, y and z
- Qualify calcRoll and calcPitch with mainWindow
- Add .qmllint.ini with MaxWarnings=0

Pick-to: 6.12
Task-number: QTBUG-134589
Change-Id: I955aa8d1ea1b7ffff385d20eb7b7ead4ca47e4b5
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
commit9328ba39fcdc9d79e3bcb710b1a2cae6ecacb064
parente543058c17e6ce435ad80c671e9af5e2c1dade67
authorSami Shalayel <sami.shalayel@qt.io>
committerSami Shalayel <sami.shalayel@qt.io>
commit timeFri, 23 Oct 2026 11:33:31 +0000