fix app naming

Author: mms-gianni

client/src/components/pipelines/new.vue

@@ -247,7 +247,7 @@ export default {
       nameRules: [
         v => !!v || 'Name is required',
         v => v.length <= 60 || 'Name must be less than 60 characters',
-        v => /^[a-zA-Z0-9][a-zA-Z0-9_-]*$/.test(v) || 'Allowed characters : [a-zA-Z0-9_-]',
+        v => /^[a-z0-9][a-z0-9-]*$/.test(v) || 'Allowed characters : [a-z0-9-]',
       ],
       domainRules: [
         v => v.length <= 90 || 'Name must be less than 90 characters',