Release v0.4.3

This is a bugfix, maintenance and feature release.

Main change visible to the user is that you can now enable or disable auto scaling of values and units per mode.
So e.g. if you do not like milliohms or millivolts in CONT or DIOD, but want to have it in VDC: No problem. Just toggle it in the options section when in the respective mode and it will behave like it. This is also persisted across restarts.
The seperate option in settings just for CONT from 0.4.2 is removed and superseded by this general feature.

Also there were some smaller issues fixed and dependencies updated. See below for details.
Also huge shoutout to @zach-connolly who generously donated to this project.

• fix bug that change interval of graph only applies after restart
• make auto scaling of units and measurements selectable per mode
• simplify repaint logic and ensure number box update is not tied to graph update
• upgrade to egui 0.34.1
• upgrade to rust 1.92
• use temporary version of egui-dropdown until PR is included to build against egui 0.34.1