[native] Get rid of bottomSheetPaddingTop in ConnectFarcasterBottomSheet

Summary:
This padding was hardcoded by Ginsu to add additional space at the bottom of the `BottomSheet`. It is obviated by my work to consider `BottomSheetHandle` when setting `snapPoints`.

The padding was extra large because Ginsu measured the height of the button incorrectly. Once I adjusted the height of button, the padding is approximately the same as what it was before.

Depends on D13870

Test Plan: In combination with the rest of the stack, I tested each individual use of our `BottomSheet` component to make sure that the bottom padding was reasonable. In most cases it was unchanged; in other cases, it was changed to be more consistent with the other `BottomSheet`s in our codebase. In all cases, there was enough padding for the "home pill" at the bottom of the screen

Reviewers: bartek

Reviewed By: bartek

Subscribers: tomek

Differential Revision: https://phab.comm.dev/D13871

native/components/connect-farcaster-bottom-sheet.react.js

@@ -19,10 +19,9 @@ import type { RootNavigationProp } from '../navigation/root-navigator.react.js';
 import type { NavigationRoute } from '../navigation/route-names.js';
 import { useTryLinkFID } from '../utils/farcaster-utils.js';
 
-const bottomSheetPaddingTop = 32;
 const farcasterPromptHeight = 350;
 const marginBottom = 40;
-const buttonHeight = 48;
+const buttonHeight = 61;
 
 type Props = {
   +navigation: RootNavigationProp<'ConnectFarcasterBottomSheet'>,
@@ -66,11 +65,7 @@ function ConnectFarcasterBottomSheet(props: Props): React.Node {
 
   React.useLayoutEffect(() => {
     setContentHeight(
-      bottomSheetPaddingTop +
-        farcasterPromptHeight +
-        marginBottom +
-        buttonHeight +
-        insets.bottom,
+      farcasterPromptHeight + marginBottom + buttonHeight + insets.bottom,
     );
   }, [insets.bottom, setContentHeight]);
 
@@ -117,7 +112,7 @@ const styles = StyleSheet.create({
     paddingHorizontal: 16,
   },
   promptContainer: {
-    marginBottom: 40,
+    marginBottom,
   },
 });