Resolve the previously-open design questions in the android-driver
change by researching the appium-uiautomator2-driver docs and Appium 3
release notes:
- tap -> mobile: clickGesture
- swipe -> mobile: dragGesture (duration_ms converted to speed px/s)
- home -> mobile: pressKey (KEYCODE_HOME)
- port isolation -> appium:systemPort capability
- Appium 3 breaking changes confirmed to not affect this design
Updates design.md (Decisions/Risks/Open Questions/Migration Plan) and
tasks.md (section 1 and tasks 2.1/2.4/4.1) accordingly.
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