This PR resolves #2901. The order of \usepackage commands is independent of the order of the list on the Packages tab. Package inputenc is removed.

Test

With these settings:

the wizard generates:

\documentclass[ngerman,10pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage[width=15.00cm, height=24.00cm]{geometry}
\usepackage{graphicx}
\usepackage{mathtools}
\usepackage{amssymb}
\usepackage{amsthm}
\usepackage{thmtools}
\usepackage{xcolor}
\usepackage{nameref}
\usepackage{babel}
\usepackage{hyperref}
\usepackage{tikz}
\begin{document}

\end{document}

Be aware that package nameref had been added to the packages tab as new package (also tikz) for testing, and is now a duplicate. Even so the wizard doesn't generate usepackage{nameref} a second time. This holds for all default (non user added) packages.

Note: Comment of third commit should say ..., fontenc,..., not userenc.