Summary:
**Highlights**
- New settings panel for configuring Android SDK paths and iOS support.
- Support for taking screenshots and recording videos on Windows.
- Copying an element name in the layout inspector now copies the attributes instead of just a numeric identifier.
Full changelog at https://github.com/facebook/flipper/compare/v0.25.0...v0.26.0
Reviewed By: jknoxville
Differential Revision: D18007369
fbshipit-source-id: ad4069da59f5b2b96090a14c17d57d37a0ca64be
15ce3319f1