The JSON output sent to the Hyperion server was malformed, specifically
the "priority" field, leading to an "unterminated object" error.
This was caused by the _hyperionPriority_m variable (and
subsequently _priority_m in hgx11net) containing the literal
"priority:" string, which was then redundantly added during JSON
string construction.
This commit modifies:
- hgx11.cpp: To store only the numerical priority value in
_hyperionPriority_m.
- hgx11net.cpp: To explicitly add the "priority:" key during JSON
string construction in all relevant functions (clearLeds,
setLedColor, _colorAdjustment, _thresholdAdjustment,
_transformdAdjustment, _temperatureAdjustment, and _setImgSize).
This ensures that the generated JSON is correctly formatted.
