Fix text wrapping in absolutely positioned elements on Android

Summary:
## Context

On Android TV, text inside absolutely-positioned Views wraps unexpectedly when the computed width from Yoga is fractional. This manifests as "Keep watching" breaking to two lines in the exit dialog when the button text is focused (rendered via an absolutely-positioned overlay for color animation).

The root cause is a rounding mismatch in React Native's Android TextLayoutManager: `desiredWidth` (the text's needed width) uses `ceil()` (rounds up), but `layoutWidth` in `EXACTLY` and `AT_MOST` modes uses `floor()` (rounds down). When Yoga passes a fractional width (e.g. 258.5px), the container gets `floor(258.5) = 258px` but the text needs `ceil(258.3) = 259px`, causing a 1px shortfall that triggers wrapping.

## Root Cause

Using `floor` in `TextLayoutManager.kt` for `EXACTLY` and `AT_MOST` modes causes the width of the text container to be too narrow and line wrap.

## Fix

Changes `floor(width).toInt()` to `ceil(width).toInt()` in both `YogaMeasureMode.EXACTLY` and `YogaMeasureMode.AT_MOST` branches of `TextLayoutManager.createLayout()`. This ensures that when Yoga provides a fractional pixel width, the text layout gets enough space rather than being truncated by 1px.

## Notes

This was confirmed a problem with an absolutely positioned style with that had `left:0, right:0` applied. Width sizing was confirmed to be the issue when `left:-1, right:-1` resolved the issue. Further investigation found this fix in text sizing.

Only the EXACTLY is needed for Airwave, but it's probably best to have proper values for each case.

Differential Revision: D102920508

Author: clocksarestupid

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/text/TextLayoutManager.kt

@@ -637,8 +637,8 @@ internal object TextLayoutManager {
 
     val layoutWidth =
         when (widthYogaMeasureMode) {
-          YogaMeasureMode.EXACTLY -> floor(width).toInt()
-          YogaMeasureMode.AT_MOST -> min(desiredWidth, floor(width).toInt())
+          YogaMeasureMode.EXACTLY -> ceil(width).toInt()
+          YogaMeasureMode.AT_MOST -> min(desiredWidth, ceil(width).toInt())
           else -> desiredWidth
         }
     return buildLayout(