* feat: add View#setBorderRadius
test: initial setBorderRadius tests
fix: robustly set border radius
chore: add PAUSE_CAPTURE_TESTS for easier screencap dev
feat: add view border radius support
test: view border radius
refactor: cleanup view code
* maybe delay capture to fix tests?
* refactor: retry screen captures in an attempt to fix flakiness
* refactor: ScreenCapture constructor no longer async
* increase screen capture timeout, feels a little short
* refactor: move rounded rect util into chromium_src
* skip some capture tests on mas
* Disable flaky test
* Add helper for storing test artifacts
* Refactor screen capture tests
We have a pattern for inspecting a screen capture, so this refactor codifies that pattern into a helper. This gives us shorter test code, consistency (previously, the display in test code and the display captured could theoretically be different), and better debugging/observability on failure.
