Feature: Improve label experience (#975)

Co-authored-by: Sojan <sojan@pepalo.com>

lib/regex_helper.rb

@@ -0,0 +1,8 @@
+module RegexHelper
+  # user https://rubular.com/ to quickly validate your regex
+
+  # the following regext needs atleast one character which should be
+  # valid unicode letter, unicode number, underscore, hyphen
+  # shouldn't start with a underscore or hyphen
+  UNICODE_CHARACTER_NUMBER_HYPHEN_UNDERSCORE = Regexp.new('\A[\p{L}\p{N}]+[\p{L}\p{N}_-]+\Z')
+end