fix: Fix hats colours
Fixes a bug introduced in c3fa2a84
Whether the hue value is coded as:
- a float between 0 and 1, or
- an angle between 0 and 360,
is not explicitly defined in the XEP. However, the current practice for hue values in other XEPs is to use degrees. Moreover, examples of the hats XEP use values > 1.0, implying that degrees is the way to go.
It is worth noting that movim support hats colours too, and expects an angle between 0 and 360.
Edited by nicoco