Do not sort skills alphabetically

The current implementation groups the listed skills in groups (in the example below "Languages" and "Web") and sorts the skills alphabetically.
```
technical_skill = [
# Languages
"Python", "Javascript", "Fortran",
# Web
"HTML", "CSS"
]
```
As a result:
```
Technical Skills
Tools: CSS, HTML
Languages: Fortran, Javascript, Python
```
This leads to unwanted results, e.g. Fortran and CSS coming before and getting more attention than Python and HTML. A workaround I am using is to hack `tech_skills.toml` or `cvcreator`'s code.

Let's get rid of the alphabetical sorting and trust the user on the ordering of the skills