The file is too large and it is not very convenient to operate with it

Good day!

The simple issue. I did not have any good tools with me and I needed to check the changes into landscape. So I opened it in browser and got something like this even on powerful laptop:

It means that it is difficult to operate with the file when it's size over 500k.

I think it would be nice to split all records by some logic. Let's propose the alphabet. I think it would give almost uniform distribution and it would make changes to the file easier as maintainers ask to keep the alphabetical sort in single file. I don't see any disadvantages. Probably the only thing is that potential contributor could mess with the letters and add a new product starting from (just example) A letter in the file where only names starting from B letter are present. But it could be easily handled by automation.

So finally:
- now we have a single `landscape.yaml`
- lets' split it into `landscape-a.yaml`, `landscape-b.yaml` ... ``landscape-z.yaml` files
- if we need to generate site, just combine programatically all files and process them as it was done before.