Fix aliases for Bazzite CLI (#18)

Co-authored-by: Vladimir Viatskii <vladimir@vtsk.online>
Reviewed-on: #18
Reviewed-by: Stanislav Nikitin <pztrn@pztrn.name>
Co-authored-by: Vladimir Viatskii <8+hdkv@code@pztrn.name>

zsh/apps/bazzite-cli.app.zsh

@@ -1,7 +1,5 @@
 function bazzite-cli() {
-    # Those two are conflicting with Bazzite CLI aliases.
-    unalias ls
-    unalias sl
+    BAZZITE_CLI=1
 
     source /usr/share/bazzite-cli/bling.sh
 }