feat: rename browser layout and add generics util function

internal/utils/fileutil/filetutil.go

@@ -0,0 +1,36 @@
+package fileutil
+
+import (
+	"io/ioutil"
+	"os"
+)
+
+// FileExists checks if the file exists in the provided path
+func FileExists(filename string) bool {
+	info, err := os.Stat(filename)
+	if os.IsNotExist(err) {
+		return false
+	}
+	if err != nil {
+		return false
+	}
+	return !info.IsDir()
+}
+
+// FolderExists checks if the folder exists
+func FolderExists(foldername string) bool {
+	info, err := os.Stat(foldername)
+	if os.IsNotExist(err) {
+		return false
+	}
+	if err != nil {
+		return false
+	}
+	return info.IsDir()
+}
+
+// ReadFile reads the file from the provided path
+func ReadFile(filename string) (string, error) {
+	s, err := ioutil.ReadFile(filename)
+	return string(s), err
+}