Improvements to the date picker

[jamie-budibase]

We've made several updates to our date picker to improve both visual customization, and to clear up a few bugs.

Enhancements:

• The new date picker now supports theming, allowing for a more customized user interface.
• Dates are now automatically formatted according to the user's local settings (e.g., DD/MM/YYYY for UK, MM/DD/YYYY for US).

Bug Fixes:

• Fixed an issue where storing a date-only field in a date-time type in an external database could display the date as the day before in Budibase.
• Resolved problems related to the "ignore timezones" flag, which previously caused a 1-hour offset for dates falling within daylight savings periods compared to the current non-daylight savings day.