fix(file-tree): improve item sorting logic

// ignore-for-release

layouts/_partials/plugin/file-tree.html

@@ -1,11 +1,11 @@
 {{- /*
   Recursive function to render tree from structured data
   @param {array} items - Array of tree items
-  @param {int} depth - Current depth level
   @param {int} level - The expand level of the tree (expand all: -1, collapse all: 0)
-  @param {bool} folderSlash - Whether to append a trailing "/" to folder names
-  @param {array} ignoreList - List of file or folder names to ignore
-  @param {array} highlightList - List of file or folder names to highlight
+  @param {int} [depth=0] - Current depth level
+  @param {bool} [folderSlash=false] - Whether to append a trailing "/" to folder names
+  @param {array} [ignoreList] - List of file or folder names to ignore
+  @param {array} [highlightList] - List of file or folder names to highlight
 
   File tree item structure:
     name: string     - The name of the file or folder
@@ -14,17 +14,28 @@
 */ -}}
 {{- define "render-file-tree" -}}
   {{- $items := .items -}}
-  {{- $depth := .depth -}}
   {{- $level := .level -}}
-  {{- $folderSlash := .folderSlash -}}
+  {{- $depth := .depth | default 0 -}}
+  {{- $folderSlash := .folderSlash | default false -}}
   {{- $ignoreList := .ignoreList | default slice -}}
-  {{- $highlightList := .highlightList -}}
+  {{- $highlightList := .highlightList | default slice -}}
 
   <ul class="file-tree" data-level="{{ $depth }}">
+    {{- /* Sort items: directories first, then files */ -}}
+    {{- $dirItems := slice -}}
+    {{- $fileItems := slice -}}
     {{- range $items -}}
       {{- if in $ignoreList .name -}}
         {{- continue -}}
       {{- end -}}
+      {{- if eq .type "dir" -}}
+        {{- $dirItems = $dirItems | append . -}}
+      {{- else -}}
+        {{- $fileItems = $fileItems | append . -}}
+      {{- end -}}
+    {{- end -}}
+    
+    {{- range (append $fileItems $dirItems) -}}
       {{- $isDir := eq .type "dir" -}}
       {{- $isCollapsed := $isDir | and (ge $depth $level) | and (ge $level 0) -}}
       {{- $isHighlighted := in $highlightList .name -}}
@@ -62,8 +73,17 @@
 {{- end -}}
 
 {{- if .items -}}
-  <div class="file-tree-wrapper">
-    {{- $options := dict "depth" 0 | merge . -}}
-    {{- template "render-file-tree" $options -}}
-  </div>
+  {{- $ignoreList := .ignoreList | default slice -}}
+  {{- $notEmpty := false -}}
+  {{- range .items -}}
+    {{- if not (in $ignoreList .name) -}}
+      {{- $notEmpty = true -}}
+      {{- break -}}
+    {{- end -}}
+  {{- end -}}
+  {{- if $notEmpty -}}
+    <div class="file-tree-wrapper">
+      {{- template "render-file-tree" . -}}
+    </div>
+  {{- end -}}
 {{- end -}}