Fix textsize

Description

In the axis the text is drawn without the textlabel, and the font was scaled by a factor. But this does not have the same effect than scaling the object it self, as it was done in the Textlabel (The size of the Textlabel is correct, see below).

TextLabel size check (Textsize: 128 -> 45.1556mm (conversion)). The bounding rect is slightly greater but this is not a problem. The T has exactly a height of 45.1556mm:

TextLabel size check between Plot and Worksheet Label. Both have same size:

Text size check between Axis Title (Textlabel) and axis labels (manually drawn)

Conformity

• Changelog entry
• Downport
• Unittests
• Fixed Bugs: #962 (closed) https://bugs.kde.org/show_bug.cgi?id=472982

If external dependencies are removed

• Reporting to ...