feat(timeshift): Add support for date range timeshifts (apache#34375)

Author: msyavuz

RESOURCES/FEATURE_FLAGS.md

@@ -28,6 +28,7 @@ These features are considered **unfinished** and should only be used on developm
 [//]: # "PLEASE KEEP THE LIST SORTED ALPHABETICALLY"
 
 - ALERT_REPORT_TABS
+- DATE_RANGE_TIMESHIFTS_ENABLED
 - ENABLE_ADVANCED_DATA_TYPES
 - PRESTO_EXPAND_DATA
 - SHARE_QUERIES_VIA_KV_STORE