5.18.0

• [react] feat: Add @sentry/react package (#2631)
• [react] feat: Add Error Boundary component (#2647)
• [react] feat: Add useProfiler hook (#2659)
• [core] feat: Export makeMain (#2665)
• [core] fix: Call bindClient when creating new Hub to make integrations work automatically (#2665)
• [gatsby] feat: Add @sentry/gatsby package (#2652)
• [tracing] feat: Add scope.getTransaction to return a Transaction if it exists (#2668)
• [tracing] ref: Deprecate scope.setTransaction in favor of scope.setTransactionName (#2668)
• [core] ref: Rename whitelistUrls/blacklistUrls to allowUrls/denyUrls (#2671)
• [react] ref: Refactor Profiler to account for update and render (#2677)
• [apm] feat: Add ability to get span from activity using getActivitySpan (#2677)
• [apm] fix: Check if performance.mark exists before calling it (#2680)
• [tracing] feat: Add beforeNavigate option (#2691)
• [tracing] ref: Create navigation transactions using window.location.pathname instead of window.location.href (#2691)