Moved the code from src to the root.

helper/helper.go

@@ -0,0 +1,11 @@
+package helper
+
+import (
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/dialog"
+)
+
+func FileDialogResize(fileDialog *dialog.FileDialog, w fyne.Window) {
+	contentSize := w.Content().Size()
+	fileDialog.Resize(fyne.Size{Width: contentSize.Width - 50, Height: contentSize.Height - 50})
+}

helper/path_separator.go

@@ -0,0 +1,8 @@
+//go:build !windows
+// +build !windows
+
+package helper
+
+func PathSeparator() string {
+	return "/"
+}

helper/path_separator_window.go

@@ -0,0 +1,8 @@
+//go:build windows
+// +build windows
+
+package helper
+
+func PathSeparator() string {
+	return "\\"
+}

helper/prepare_background_command.go

@@ -0,0 +1,12 @@
+//go:build !windows
+// +build !windows
+
+package helper
+
+import (
+	"os/exec"
+)
+
+func PrepareBackgroundCommand(cmd *exec.Cmd) {
+
+}

helper/prepare_background_command_windows.go

@@ -0,0 +1,13 @@
+//go:build windows
+// +build windows
+
+package helper
+
+import (
+	"os/exec"
+	"syscall"
+)
+
+func PrepareBackgroundCommand(cmd *exec.Cmd) {
+	cmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
+}