Implement Bottom Tab Navigator

[hayata-suenaga]

As part of the Ideal Nav overhaul, implement the Bottom Tab Navigator according to the requirements specified in the design doc.

Parent Issue: #32689

[melvin-bot]

Triggered auto assignment to @joekaufmanexpensify (NewFeature), see https://stackoverflowteams.com/c/expensify/questions/14418#:~:text=BugZero%20process%20steps%20for%20feature%20requests for more details.

[hayata-suenaga]

@adamgrzybowski from Software Mansion is going to work on this issue 🎉

[adamgrzybowski]

👋

[joekaufmanexpensify]

Going to unassign myself for now, since this we already have someone assigned for this, and it's a new feature rather than a bug. If any BZ work (like issuing payment) is required at any point, please re-assign me, and I'll handle it!