epm play webcord: add aarch64 support

play.d/webcord.sh

 #!/bin/sh
 
 PKGNAME=WebCord
-SUPPORTEDARCHES="x86_64"
+SUPPORTEDARCHES="x86_64 arm64"
 VERSION="$2"
 DESCRIPTION="A Discord and Spacebar client implemented directly without Discord API from the official github"
 
 . $(dirname $0)/common.sh
 
+arch="$(epm print info -a)"
+case "$arch" in
+    x86_64)
+        arch=x64
+        ;;
+    aarch64)
+        arch=arm64
+        ;;
+    *)
+        fatal "$arch arch is not supported"
+        ;;
+esac
+
+
 pkgtype=AppImage
 
-PKGURL=$(epm tool eget --list --latest https://github.com/SpacingBat3/WebCord/releases "WebCord-$VERSION-x64.$pkgtype")
+PKGURL=$(epm tool eget --list --latest https://github.com/SpacingBat3/WebCord/releases "WebCord-$VERSION-$arch.$pkgtype")
 [ -n "$PKGURL" ] || fatal "Can't get package URL"
 
 epm install "$PKGURL"