[BottomSheet] Fixed IME bottom padding is ignored in edge-to-edge case.

The regression on BottomSheet was introduced in 1.6.0-alpha01. Before this version, the bottom padding in edge-to-edge mode is calculated by getSystemWindowInsetBottom().

https://developer.android.com/reference/android/view/WindowInsets#getSystemWindowInsetBottom()

This is deprecated in newer APIs. According to deprecation message, the replacement is to use getInsets(int) with Type#systemBars(). But this is not completely true, because it doesn't contain IME insets.

https://developer.android.com/reference/android/view/WindowInsets.Type#systemBars()

Resolves: #2543
PiperOrigin-RevId: 426304311

Author: pekingme

lib/java/com/google/android/material/bottomsheet/BottomSheetBehavior.java

@@ -1494,7 +1494,8 @@ public WindowInsetsCompat onApplyWindowInsets(
             int rightPadding = view.getPaddingRight();
 
             if (paddingBottomSystemWindowInsets) {
-              insetBottom = systemBarInsets.bottom;
+              Insets imeInsets = insets.getInsets(WindowInsetsCompat.Type.ime());
+              insetBottom = systemBarInsets.bottom + imeInsets.bottom;
               bottomPadding = initialPadding.bottom + insetBottom;
             }