refactor(tab-bar): remove extra bottom

Author: thetaPC

core/src/components/tab-bar/tab-bar.ionic.scss

@@ -51,8 +51,6 @@
 
   position: absolute;
 
-  bottom: calc(globals.$ionic-space-100 + var(--ion-safe-area-bottom, 0));
-
   align-self: center;
 
   width: fit-content;