Reworked wedge element, Fixed code copy button, Silenced SplideJS error for now

Update composer.php, common.json, and 8 more files...

resources/NibblePoker/scss/nibblepoker.scss

@@ -27,6 +27,7 @@
 @import 'core/text';
 @import 'core/containers';
 @import 'core/display';
+@import 'core/position';
 
 /* Core > Rounding */
 @import 'core/rounding/global';