- Fixing AOT issues

- Cannot read property 'nativeElement' of undefined ([1430](https://github.com/rangle/augury/pull/1430))
- Update supported versions ([1425](https://github.com/rangle/augury/pull/1425))
- Adding redirect to route path description ([1423](https://github.com/rangle/augury/pull/1423))
- Adding try catch with workaround to solve bug ([1418](https://github.com/rangle/augury/pull/1418))
- Sanity for AppRef.isStable observable ([1417](https://github.com/rangle/augury/pull/1417))
- Update libraries & Compability ([1416](https://github.com/rangle/augury/pull/1416))
- Define selectedComponentProperty in the way it could be redefined ([1411](https://github.com/rangle/augury/pull/1411))

* Fix component info scrolling firefox
* Handle string provider type in Description.getProviderDescription
* Remove from README duplicate at table of contents

-- New in version 1.21.0
* Fix state now showing issues

* Angular 7 support
* Bump npm package versions
* Remove beta from Firefox

* Highlighter/selection tool improvements
* Bug fixes (angularJS hybrid app compatibility, component tree refreshing, and more state panel issues)

Bug Fixes:
- States not showing up for some components (there might be still some edge cases out there that cause this issue, but all known occurrences are fixed for).
- Page slowing down to a freeze due to interaction between Augury and other extensions (notably Redux DevTools)
- Angular JIT compiler error due to reflect-metadata. (reflect-metadata is no longer included in the Augury build)

Small Tweaks:
- "loading" / "no state to show" messages during component state inspection

- FireFox build does not interact with outside services or run downloaded scripts. CSP updated to reflect this. Previous versions communicate with Google Tag Manager and Sentry, and fetch GTM's script on the fly.

- Fonts are locally sourced, rather than fetched from CDN.

- Changes to Augury's code remove various instances of `new Function()` from the final build. Same tasks are now performed without `eval`, with JSON5.

- Ahead-Of-Time compilation removes Angular's compiler from the production build.