fix(ui): Enable word wrapping for batch settings labels

Issue:
- User reported batch settings text being cut off
- "Settings persist across videos. Change them anytime to affect all sub"
- Text truncated instead of wrapping to next line
- Cache directory hint also had truncation issues

Root Cause:
- settingsInfoLabel didn't have TextWrapWord enabled
- cacheDirHint had TextWrapWord but wasn't in a sized container
- Labels in VBox need padded containers for wrapping to work properly

Solution:
- Enabled TextWrapWord on settingsInfoLabel
- Wrapped both labels in container.NewPadded() containers:
  * settingsInfoContainer: "Settings persist across videos..." text
  * cacheDirHintContainer: "Use an SSD for best performance..." text
- Replaced direct label usage with containers in settingsContent VBox

Affected Labels:
- settingsInfoLabel: Batch settings persistence explanation
- cacheDirHint: Cache/temp directory usage guidance

Implementation:
- Added TextWrapWord to settingsInfoLabel
- Created padded containers for both labels
- Updated settingsContent VBox to use containers instead of labels
- Consistent with fix from commit 1051329

Impact:
- Batch settings text now wraps properly
- "Change them anytime to affect all subsequent videos" fully visible
- Better readability in narrow windows
- No more truncated guidance text

Files Changed:
- main.go: Batch settings label wrapping

Reported-by: User (screenshot showing batch settings truncation)
Related: Commit 1051329 (hint label wrapping fix)
Tested: Build successful (v0.1.0-dev20)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

main.go

@@ -6836,6 +6836,9 @@ func buildConvertView(state *appState, src *videoSource) fyne.CanvasObject {
 	// Settings management for batch operations
 	settingsInfoLabel := widget.NewLabel("Settings persist across videos. Change them anytime to affect all subsequent videos.")
 	settingsInfoLabel.Alignment = fyne.TextAlignCenter
+	settingsInfoLabel.Wrapping = fyne.TextWrapWord
+	// Wrap in padded container for proper text wrapping in narrow windows
+	settingsInfoContainer := container.NewPadded(settingsInfoLabel)
 
 	cacheDirLabel := widget.NewLabelWithStyle("Cache/Temp Directory", fyne.TextAlignLeading, fyne.TextStyle{Bold: true})
 	cacheDirEntry := widget.NewEntry()
@@ -6843,6 +6846,8 @@ func buildConvertView(state *appState, src *videoSource) fyne.CanvasObject {
 	cacheDirEntry.SetText(state.convert.TempDir)
 	cacheDirHint := widget.NewLabel("Use an SSD for best performance. Leave blank to use system temp.")
 	cacheDirHint.Wrapping = fyne.TextWrapWord
+	// Wrap in padded container for proper text wrapping in narrow windows
+	cacheDirHintContainer := container.NewPadded(cacheDirHint)
 	cacheDirEntry.OnChanged = func(val string) {
 		state.convert.TempDir = strings.TrimSpace(val)
 		utils.SetTempDir(state.convert.TempDir)
@@ -6872,12 +6877,12 @@ func buildConvertView(state *appState, src *videoSource) fyne.CanvasObject {
 	resetSettingsBtn.Importance = widget.LowImportance
 
 	settingsContent := container.NewVBox(
-		settingsInfoLabel,
+		settingsInfoContainer,
 		widget.NewSeparator(),
 		cacheDirLabel,
 		container.NewBorder(nil, nil, nil, cacheBrowseBtn, cacheDirEntry),
 		cacheUseSystemBtn,
-		cacheDirHint,
+		cacheDirHintContainer,
 		resetSettingsBtn,
 	)
 	settingsContent.Hide()