Fix snippet toggle button scope

DONE.md

@@ -832,6 +832,7 @@ This file tracks completed features, fixes, and milestones.
 - ✅ Linked simple and advanced bitrate presets so they stay in sync
 - ✅ Hide quality presets when bitrate mode is not CRF
 - ✅ Collapsed snippet tools behind a toggle in the convert footer
+- ✅ Fixed snippet toggle button scope to avoid build error
 - ✅ Stabilized video seeking and embedded rendering
 - ✅ Improved player window positioning
 - ✅ Fixed clear video functionality

TODO.md

@@ -65,6 +65,7 @@ This file tracks upcoming features, improvements, and known issues.
   - Simple/advanced bitrate presets synced
   - Quality presets hidden when bitrate mode is not CRF
   - Snippet tools collapsed behind a toggle to reduce footer clutter
+  - Snippet toggle scope fixed to eliminate build error
 
 *Last Updated: 2025-12-20*
 

main.go

@@ -7238,7 +7238,8 @@ func buildConvertView(state *appState, src *videoSource) fyne.CanvasObject {
 	snippetTools := container.NewVBox(snippetConfigRow, snippetRow)
 	snippetTools.Hide()
 	snippetToolsVisible := false
-	snippetToggleBtn := widget.NewButton("Show Snippet Tools", func() {
+	var snippetToggleBtn *widget.Button
+	snippetToggleBtn = widget.NewButton("Show Snippet Tools", func() {
 		if snippetToolsVisible {
 			snippetTools.Hide()
 			snippetToggleBtn.SetText("Show Snippet Tools")