fix(navigation): ignore extensions on navigation sort (#2529)

src/runtime/server/navigation.ts

@@ -118,6 +118,10 @@ const collator = new Intl.Collator(undefined, { numeric: true, sensitivity: 'bas
  * Sort items by path and clear empty children keys.
  */
 function sortAndClear (nav: PrivateNavItem[]) {
+  nav.forEach((item) => {
+    // Remove extension from path
+    item._file = item._file.split('.').slice(0, -1).join('.')
+  })
   const sorted = nav.sort((a, b) => collator.compare(a._file, b._file))
 
   for (const item of sorted) {

test/features/navigation.ts

@@ -55,14 +55,19 @@ export const testNavigation = () => {
         }
       })
 
-      // page.md, index.md, /not-hidden-dir
-      expect(list[0].children).toHaveLength(3)
+      // page.md, index.md, /not-hidden-dir, /foo, /foo-bar
+      expect(list[0].children).toHaveLength(5)
 
       // /hidden-dir should not exist
       expect(list[0].children.find(item => item._path.includes('/hidden-dir'))).toBe(undefined)
 
       // /not-hidden-dir should exist
       expect(list[0].children.find(item => item._path.includes('/not-hidden-dir'))).toBeTruthy()
+
+      expect(list[0].children.findIndex(item => item._path === '/test-navigation/foo'))
+        .lessThan(
+          list[0].children.findIndex(item => item._path === '/test-navigation/foo-bar')
+        )
     })
 
     test('Get numbers navigation', async () => {

test/fixtures/basic-aq/content/test-navigation/foo-bar.md

@@ -0,0 +1 @@
+# foo - bar

test/fixtures/basic-aq/content/test-navigation/foo.md

@@ -0,0 +1 @@
+# foo

test/fixtures/basic/content/test-navigation/foo-bar.md

@@ -0,0 +1 @@
+# foo - bar

test/fixtures/basic/content/test-navigation/foo.md

@@ -0,0 +1 @@
+# foo