Draft: Update show_text render option + fix grid points

I decided that I need much more details in the videos for debugging etc. What I did was adding a second column/ax to the figure and use it for text. The text includes all attrs, the file path (including host) and the text datasets that were already shown before.

Downside is that it is quite slow. Rendering to a file slows down by a factor of 4, but of course only with the --show_text option set.

See screenshot: