[CLNP-4581][CLNP-4582] fix: direction of some icons in RTL (#1183)

Fixes 
- https://sendbird.atlassian.net/browse/CLNP-4582 : leave channel icon
- https://sendbird.atlassian.net/browse/CLNP-4581 : broadcast channel icon

Author: AhyoungRyu

src/modules/ChannelSettings/components/ChannelSettingsUI/channel-settings-ui.scss

@@ -83,6 +83,10 @@
 
   .sendbird-channel-settings__panel-icon-left {
     left: 16px;
+    /*rtl:raw:
+    &.sendbird-channel-settings__panel-icon__leave {
+      transform: rotate(180deg);
+    }*/
   }
   .sendbird-channel-settings__panel-icon-right {
     right: 16px;

src/ui/ChannelAvatar/index.scss

@@ -10,4 +10,10 @@
   @include themed() {
     background-color: t(secondary-3);
   }
+  /*rtl:raw:
+  .sendbird-icon {
+    &.sendbird-icon-broadcast {
+      transform: rotateY(180deg);
+    }
+  }*/
 }