Make Github stars dynamic and improve database init (#5000)

I extracted the init database logic into its own file. 
You can now run it with yarn database:init.
Added database entry for GitHub stars. 

Do you want me to remove the init route or is it used for something else
?

---------

Co-authored-by: Ady Beraud <a.beraud96@gmail.com>
Co-authored-by: Félix Malfait <felix.malfait@gmail.com>

packages/twenty-website/src/shared-utils/formatNumberOfStars.ts

@@ -0,0 +1,3 @@
+export const formatNumberOfStars = (numberOfStars: number) => {
+  return Math.floor(numberOfStars / 100) / 10 + 'k';
+};