Datepicker Pop-Ups on Multiple Event Offerings

When trying to use the datepicker to choose a date on an event with multiple offerings, there are two issues:

1. The date picker on multiple event offerings is visually different from the one we have for creating single events.
2. After clicking the date picker on multiple event offerings, the date picker for Single Events and Multiple Events sometimes show up together, which is a strange bug.
3. Additionally, improve the date picker by making the entire body clickable. The picker only pops up if the calendar icon is clicked.

Single Event Date Picker:

Multiple Event Date Picker:

Both showing up when clicking the date picker for multiple events: