[native] switched fixed tooltip component from a vertical layout to horizontal

Summary:
Tooltips that have a fixed location now have a horizontal layout, don't render the triangles, and have a minWidth of the screen size with 8px of padding on each side. Also created a fixedTooltipHeight variable since the tooltip height for fixed tooltips will always be the same, and using inspector found out that the height of the new tooltip is 53px.

Depends on D5468
Linear Task: ENG-2037
Design: Figma

Test Plan:
Please review the screenshots below to see the changes I made, before and after:

Create Thread Case:

Open Thread Case:

Inspector View:

Video Demo:

Reviewers: atul, rohan, tomek

Reviewed By: atul, rohan

Subscribers: ashoat, tomek, atul, abosh

Differential Revision: https://phab.comm.dev/D5381