Fixed Daily Average and Time summary graphs

[4Source]

The daily average graph used for average time always 30 days even if there are not enough entries

The graph will now still show the last 30 days even if there are no entries for it.
But for the calculation of average it will use only the last number of days which are not 0.

Example

If in the last 30 days only the last 5 days have an entry the average will be the sum of all entries divided by 5.
If in the last 30 days only the first 5 days have and entry the average will be the summ of all entries divided by 30.

After writing this down I am not sure any more this is more intuitive than it was before let me know what you think.

Extend command generate test data

I added extended functionality to the generate test data command to allow testing this probably. The generate test data command now will ask for a number of days to generate

The Time Summary Graph Skipped Labels and color

The time summary graph skipped labels for 'This week' and 'This year' and the labels do not use the foreground color for dark theme

With the fix

Light theme

Dark theme