New flat watermelon variants and improved pin variants

There is a update for the flat watermelon variants for 3d printing. Here is whats new:

- More text variants
- Improved Pins plus big Pins also have separated variants now
- Improved backside text with brims for tiny text parts (like the hole of the A)
- Added new alternative backside text font that is easier to print
- Added Stepped variants for tiny pins and tiny clips with extend

The pin variants had a bit of a problem where when you somehow hold it only on the green part and press on the needle part it would pop apart. This is now much harder to do with the improved version.

New text variants include also a new font that is especially easier to print for the backside texts. Actual new words/text are Resist, Liberation and just Palestine with the deco part. They also come with various outlines and fitting seeds.

The Palestinian Relief Bundle has now ended. If you want to support a Palestinian Charity organization I recommend Care For Gaza https://www.gofundme.com/f/careforgaza