Recoil Sync 0.2

• Export updateItems() for the listen prop callback in <RecoilSync> in addition to updateItem() and updateAllKnownItems(). (#2017, #2035)
• Removing a parameter from the URL will reset atoms when using location queryParams with a param. This is a slight breaking change when an atom might sync with multiple URL params. (#1900, #1976)
• Add a dev warning if an unstable handlers prop is detected for <RecoilURLSyncTransit>. (#2044)