Allow multi-select dropdown and date/time in tables

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Feature request

Which Nextcloud Version are you currently using: (see administration page)
34.0.2

Is your feature request related to a problem? Please describe.
I have a form that uses the table field (super awesome feature). I have a col called "Personnel." In this col I need to be able to store multiple names, but the drop-down doesn't support multi-select. So I use a free text type instead. This leads to typos which cause problems for down stream processing.

Additionally, I have column for "Dispatch Time." This needs to be a date AND time. Currently I have standard text field to collect this, but similarly, validation becomes an issue.

Describe the solution you'd like

• Have a multi-select drop-down option on the table fields.
• Have "Date" "Time" and "Date and Time" fields available in tables.

Describe alternatives you've considered

Additional context

The issue names no files or tests. Start by locating the table-field implementation and the existing dropdown, date, and time field handling, then trace how table values are validated and stored. Done means table fields support multi-select, date, time, and date-and-time choices with reliable validation.