fix(fuselage): Chevron vertical position (#910)

Co-authored-by: Tasso Evangelista <tasso.evangelista@rocket.chat>

Author: vatsilidis

packages/fuselage/src/components/Chevron/Chevron.styles.scss

@@ -1,5 +1,6 @@
 .rcx-chevron {
   display: inline-flex;
+  align-self: center;
 
   &--up {
     transform: rotate(-180deg);