fix(es/modules): Fix resolution of jsc.paths with exact match (#8685)

**Related issue:**

 - Closes #8668

crates/swc/tests/fixture/issues-8xxx/8668/input/.swcrc

@@ -0,0 +1,11 @@
+{
+    "$schema": "https://json.schemastore.org/swcrc",
+    "jsc": {
+        "baseUrl": "./",
+        "paths": {
+            "$utils": [
+                "./src/utils.ts"
+            ]
+        }
+    }
+}

crates/swc/tests/fixture/issues-8xxx/8668/input/src/app/src/index.ts

@@ -0,0 +1,2 @@
+import { str } from "$utils";
+console.log(str);

crates/swc/tests/fixture/issues-8xxx/8668/input/src/utils.ts

@@ -0,0 +1 @@
+export const str = "";

crates/swc/tests/fixture/issues-8xxx/8668/output/src/app/src/index.ts

@@ -0,0 +1,2 @@
+import { str } from "../../utils";
+console.log(str);

crates/swc/tests/fixture/issues-8xxx/8668/output/src/utils.ts

@@ -0,0 +1 @@
+export var str = "";

crates/swc_ecma_loader/src/resolvers/tsc.rs

@@ -299,7 +299,16 @@ where
 
                     if let Ok(res) = self.resolve(&self.base_url_filename, &format!("./{}", &to[0]))
                     {
-                        return Ok(res);
+                        return Ok(Resolution {
+                            slug: match &res.filename {
+                                FileName::Real(p) => p
+                                    .file_stem()
+                                    .filter(|&s| s != "index")
+                                    .map(|v| v.to_string_lossy().into()),
+                                _ => None,
+                            },
+                            ..res
+                        });
                     }
 
                     return Ok(Resolution {