Fix dbus signal and gradient

[bynect]

fix dbus signal for reload and reload handling.

also quick fix for gradient sizing

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 70.37037% with 8 lines in your changes missing coverage. Please review.

Project coverage is 65.57%. Comparing base (a0dbc00) to head (dbf43f0).

Files with missing lines	Patch %	Lines
src/draw.c	0.00%	3 Missing ⚠️
src/dbus.c	66.66%	2 Missing ⚠️
src/queues.c	50.00%	2 Missing ⚠️
src/dunst.c	0.00%	1 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1447      +/-   ##
==========================================
- Coverage   65.58%   65.57%   -0.02%     
==========================================
  Files          50       50              
  Lines        8905     8908       +3     
  Branches     1041     1042       +1     
==========================================
+ Hits         5840     5841       +1     
- Misses       3065     3067       +2     

Flag	Coverage Δ
unittests	65.57% <70.37%> (-0.02%)	⬇️

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