Fix aliases for Bazzite CLI (#18)

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

zsh/aliases/00-default.conf

@@ -2,8 +2,13 @@
 # index.
 
 # Files navigation.
-alias ls="ls --color"
-alias sl="ls --color"
+if [[ -z "${BAZZITE_CLI}" ]]; then
+    alias ls="ls --color"
+    alias sl="ls --color"
+else
+    alias ls="eza"
+    alias sl="eza"
+fi
 
 # Git.
 alias got="git"