Enable icon resizing

[rhersel]

Checklist

• [X] I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• [X] I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• [X] I have read the FAQs inside the app (Menu -> About -> FAQs) and my problem isn't listed.
• [X] I have taken the time to fill in all the required details. I understand that the bug report will be dismissed otherwise.
• [X] This issue contains only one feature request.
• [X] I have read and understood the contribution guidelines.
• [X] I optionally donated to support the Fossify mission.

Feature description

Implement an option to chance the size of icons. Both on the main screen and in the drawer. The possibility to change the number ob rows and columns, requires the adjustment of the icon size; otherwise it does not exhaust the white space.

Why do you want this feature?

I love Fossify-Launcher. It is the best replacement for NovaLauncher. Thank you guys for making it possible. Particularly for disabled persons, it is important to have text and icons at a size, that can be recognized and optimized for their needs.

Additional information

I'd like to pay for this option.