fix(es/decorators): Handle default exported class (#8691)

**Related issue:**

- Closes #8681

crates/swc/tests/fixture/issues-8xxx/8681/input/.swcrc

@@ -0,0 +1,12 @@
+{
+    "jsc": {
+        "parser": {
+            "syntax": "typescript",
+            "decorators": true
+        },
+        "target": "es2022",
+        "transform": {
+            "decoratorVersion": "2022-03"
+        }
+    }
+}

crates/swc/tests/fixture/issues-8xxx/8681/input/index.ts

@@ -0,0 +1,2 @@
+@decorator
+export default class Example { }

crates/swc/tests/fixture/issues-8xxx/8681/input/lib.ts

@@ -0,0 +1,2 @@
+@decorator
+export default class { }

crates/swc/tests/fixture/issues-8xxx/8681/output/index.ts

@@ -0,0 +1,14 @@
+import { _ as _apply_decs_2203_r } from "@swc/helpers/_/_apply_decs_2203_r";
+var _initClass;
+let _Example;
+class Example {
+    static{
+        ({ c: [_Example, _initClass] } = _apply_decs_2203_r(this, [], [
+            decorator
+        ]));
+    }
+    static{
+        _initClass();
+    }
+}
+export { _Example as default };

crates/swc/tests/fixture/issues-8xxx/8681/output/lib.ts

@@ -0,0 +1,14 @@
+import { _ as _apply_decs_2203_r } from "@swc/helpers/_/_apply_decs_2203_r";
+var _initClass;
+let __default;
+class _default {
+    static{
+        ({ c: [__default, _initClass] } = _apply_decs_2203_r(this, [], [
+            decorator
+        ]));
+    }
+    static{
+        _initClass();
+    }
+}
+export { __default as default };