2 issues with the "proportional size" style

[geguill]

Hello,
2 observations:

• when I run an analysis using the proportional size option, Geolibre does not calculate the minimum and maximum data values ​​(they remain fixed at 0 and 100, regardless of the data being analyzed)
• using the Controls > Legend menu, I get a complete legend with 3 size gradients. Unfortunately, this legend does not appear in the layout.
• I used this file: https://geguill.github.io/geolibre/ruchers_018.csv
  Thanks
  Best regards
  geguil

[giswqs]

Fixed in #1548