fix: supported extensions not including default extensions [SKIP_CHANGELOG]

Author: makspll

crates/bevy_mod_scripting_core/src/asset.rs

@@ -148,7 +148,9 @@ impl Default for ScriptAssetSettings {
                 ("rhai", Language::Rhai),
                 ("rn", Language::Rune),
             ]),
-            supported_extensions: &[],
+            supported_extensions: &[
+                "lua", "luau", "rhai", "rn", 
+            ],
         }
     }
 }