chore: reorganise folders (#843)

* chore: reorganise folders

* more renames

---------

Co-authored-by: Lleyton Gray <lleyton@fyralabs.com>

anda/devs/flutter/flutter.spec

@@ -4,6 +4,7 @@ Release:		1%{?dist}
 Summary:		SDK for crafting beautiful, fast user experiences from a single codebase
 License:		BSD-3-Clause
 URL:			https://flutter.dev
+Group:			Development/Building
 Source0:		https://storage.googleapis.com/flutter_infra_release/releases/stable/linux/flutter_linux_%version-stable.tar.xz
 Requires:		bash curl git file which zip xz-utils
 Recommends:		mesa-libGLU