Build “Welcome” screen

Create the app’s welcome screen with message and "continue" button

📋 Acceptance Criteria

✅ What to consider:

• The home screen must be the app’s entry point and include navigation to other screens.

✅ Acceptance Criteria (AC):

• GIVEN the app is launched

• WHEN the home screen is loaded

• THEN navigation buttons to "Information", "Profile", and "Chats" are displayed

• GIVEN the user clicks a button

• WHEN the navigation works correctly

• THEN the user is redirected to the respective screen

✅ Please check the Definition of Done before moving this issue to Close.