Update "Testing" section in documentation

[LeeZeHao]

Update section to be even more comphrehensive, and include current features

[LeeZeHao]

For a more comprehensive testing, I would suggest to have more testing about controlling of drone and solutions for any out-controlled conditions like low battery, weak Internet connection or dead application.

[LeeZeHao]

Feature 2: Drone Hardware: Power System implementing battery performance tests and providing detailed documentation on expected operational time per charge.

Feature 11: Client Control Interface additional in-depth testing is recommended to ensure stability and responsiveness under various usage conditions.

Feature 12: Drone Usage Timer System The timer system operates, but lacks comprehensive testing evidence. It is recommended to conduct further tests to verify its reliability and accuracy during prolonged use sessions.

General Recommendation: For the partially accepted features, a detailed plan for enhancing testing and documentation should be developed to ensure full functionality and user satisfaction. This includes more rigorous stress testing and gathering user feedback to address any potential usability issues.

[LeeZeHao]

add some evidence to the tests you have done either links to code or any changes to UI etc. (can use the video as evidence)

[LeeZeHao]

finished, closing