v0.55.0

• [BUGFIX] Fix for duplicate user subscribe #389
• [BUGFIX] Fix missing closing div tag which triggered VueJS error #385
• [BUGFIX] Hostname validator based off URLValidator #383
• [BUGFIX] Update validator to allow hostname only entries #386
• [CHANGE] Enable copied rules by default #391
• [IMPROVEMENT] Add support for SENTRY_SEND_DEFAULT_PII flag #393
• [IMPROVEMENT] Package updates #392
• [IMPROVEMENT] Support help_menu.inc.html override #388
• [IMPROVEMENT] Unify text on register buttons #390
• [INTERNAL] Update tests to use common test fixtures for better consistency #384