Add qalculate-gtk back and window rule for floating

.install/packages/general-packages.sh

@@ -49,6 +49,7 @@ packagesPacman=(
     "libadwaita"
     "python-pywal"
     "xdg-desktop-portal"
+    "qalculate-gtk"
 );
 
 packagesYay=(

hypr/conf/windowrules/default.conf

@@ -8,3 +8,4 @@ windowrule = tile,^(Chromium)$
 windowrule = float,^(pavucontrol)$
 windowrule = float,^(blueman-manager)$
 windowrule = float,^(nm-connection-editor)$
+windowrule = float,^(qalculate-gtk)$