Turntable (sturdier)

Some adjustments in the base:
- The connectors are adjusted to be less tight (my first print was too tight)
- The middle circle is reshaped to be slightly smaller at the top
- A circular track grove was added for less friction and better look

Some adjustments in the top:
- The railings are thicker so they don't break off so easily
- The embossed square decorations are now equally deep on both sides
- The hut is shorter and thicker so it doesn't break off so easily