refactor(popover): remove extension

Author: thetaPC

core/src/components/popover/popover.ionic.scss

@@ -1,5 +1,5 @@
 @use "../../themes/ionic/ionic.globals.scss" as globals;
-@use "./popover.common.scss";
+@use "./popover.common";
 
 // Ionic Popover
 // --------------------------------------------------