Update Themes

- Add matplotlib dracula theme
- Add steam dracula theme as submodule
- Update Dracula gtk/kvantum theme
- Change QT_QPA_PLATFORMTHEME to qt5ct in xinitrc
- Add Xournal++ dracula theme

.config/matplotlib/matplotlibrc

@@ -0,0 +1,30 @@
+lines.color: F8F8F2
+patch.edgecolor: F8F8F2
+
+text.color: F8F8F2
+
+axes.facecolor: 282A36
+axes.edgecolor: F8F8F2
+axes.labelcolor: F8F8F2
+
+axes.prop_cycle: cycler('color', ['8be9fd', 'ff79c6', '50fa7b', 'bd93f9', 'ffb86c', 'ff5555', 'f1fa8c', '6272a4'])
+
+xtick.color: F8F8F2
+ytick.color: F8F8F2
+
+legend.framealpha: 0
+
+grid.color: F8F8F2
+
+figure.facecolor: 282A36
+figure.edgecolor: 282A36
+
+savefig.facecolor: 282A36
+savefig.edgecolor: 282A36
+
+### Boxplots
+boxplot.boxprops.color: F8F8F2
+boxplot.capprops.color: F8F8F2
+boxplot.flierprops.color: F8F8F2
+boxplot.flierprops.markeredgecolor: F8F8F2
+boxplot.whiskerprops.color: F8F8F2