Implemented strict linting standards and prettier formatting config. (#248)

* Implemented strict linting standards and prettier formatting config.

* More linter fixes and type updates.

* More linter updates and type fixes

* Remove noisy comments

* Linter and type updates

* Linter, formatting and type updates.

* Linter updates

* Type updates

* Type updates

* fixed all linter errors

* Fixed all linting, formatting and type issues.

* Resolve merge conflicts.

lib/types/variable.d.ts

@@ -0,0 +1 @@
+export type Bind = OriginalBinding<GObject.Object, keyof Props<GObject.Object>, unknown>;