Refactor server side notifications (#2327)

Signed-off-by: Denis Bykhov <bykhov.denis@gmail.com>

server-plugins/notification-resources/src/utils.ts

@@ -0,0 +1,7 @@
+function escapeRegExp (str: string): string {
+  return str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
+}
+
+export function replaceAll (str: string, find: string, replace: string): string {
+  return str.replace(new RegExp(escapeRegExp(find), 'g'), replace)
+}