Adding support for DateTimePicker

Description

I would be great if we can have a DateTimePicker that shows Date and time pickers into one dialog, So in case of the user should pick both date and time, instead of showing a DatePicker then a timePicker, we can show a dateTime picker and user can select a total date in one place.

I found an idea of how you can show it. please take a look at this website for inspiration.

DatePicker tab	TimePicker tab

Contributor guide

Tech stack

javaandroid

Domain

mobile

Issue type

feature

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

3

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

1-2 days

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

stale

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

clear

Prerequisites

Android developmentJavaMaterialDateTimePicker API

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

45

Research direction

Examine the existing DatePicker and TimePicker implementations in the repository, particularly how they are rendered and managed. Consider creating a new DateTimePicker component that combines both functionalities into a single dialog with a tab layout. Refer to the example from material ui pickers.dev for UI inspiration. Check the project's contribution guidelines and existing component structure.