Providing additional time scales on the report view

Is your feature request related to a problem? Please describe. Currently I have a chart consisting of the latest 14 measurements. One problem with the existing chart is that the duration distance between two measurements is not linear on the x-axis, so that the rate of ups and downs between measurements can't be taken for real.

Describe the solution you'd like Replace the existing chart by three charts with a fixed time scale:

First with a month timescale
Second with a 3 month timescale
Third with a year timescale

This way the user and any fellow who is going to advice will have a clear impression how the tank is running according the measurement parameter and the measurement 'duties' of it's owner.

Also the CSV listing of past measurements need to be sorted descending instead of ascending according the date.

Describe alternatives you've considered Instead of providing three charts immediately you may thing of presenting one with the possibility to change the timescale dynamically (with lazy loading more measurement points). However having them has more of a dashboard character, which I would prefer.

Additional context

StefanSchubert / sabi

Providing additional time scales on the report view #116