gnome-shell/tweaks: Use consistent radius in quick-settings

Use the same radius in the quick-settings buttons too, making things
look more in place there.

It has not to be consistent with the rest, given that it's the only UI
where such elements are present, while normal buttons are fine as they
are

Author: 3v1n0

gnome-shell/src/gnome-shell-sass/_tweaks.scss

@@ -296,6 +296,63 @@ $yaru_popup_radius: $modal_radius * 1.05;
 .quick-toggle-menu {
   border-radius: $yaru_popup_radius;
 }
+
+.quick-toggle {
+  border-radius: $yaru_popup_radius;
+}
+
+/* More squircles...
+.datemenu-popover {
+  .icon-button,
+  .button {
+    border-radius: $yaru_popup_radius;
+  }
+}
+
+.quick-settings {
+  border-radius: $yaru_popup_radius;
+
+  .icon-button,
+  .button {
+    border-radius: $yaru_popup_radius;
+  }
+}
+
+.quick-toggle-menu {
+  border-radius: $yaru_popup_radius;
+
+  & .header {
+    & .icon {
+      border-radius: $yaru_popup_radius;
+    }
+  }
+}
+*/
+
+.quick-toggle-has-menu {
+  & .quick-toggle {
+    &:ltr {
+      border-radius: $yaru_popup_radius 0 0 $yaru_popup_radius;
+    }
+
+    &:rtl {
+      border-radius: 0 $yaru_popup_radius $yaru_popup_radius 0;
+    }
+
+    &:ltr:last-child { border-radius: $yaru_popup_radius; }
+    &:rtl:last-child { border-radius: $yaru_popup_radius; }
+  }
+
+  & .quick-toggle-menu-button {
+    &:ltr {
+      border-radius: 0 $yaru_popup_radius $yaru_popup_radius 0;
+    }
+    &:rtl {
+      border-radius: $yaru_popup_radius 0 0 $yaru_popup_radius;
+    }
+  }
+}
+
 /* OSD fixes */
 .osd-window {
   .level {