[minibrowser] Take into account IME insets

Check whether IME is visible (i.e. the on screen keyboard) and take
it into account when applying insets to the main browser fragment.
Previously only the system bars insets were taken into account, which
resulted in the IME covering the toolbar and part of the web view.

Fixes #192

Author: aperezdc

tools/minibrowser/src/main/java/org/wpewebkit/tools/minibrowser/BrowserFragment.kt

@@ -102,7 +102,12 @@ class BrowserFragment : Fragment(R.layout.fragment_browser) {
 
         ViewCompat.setOnApplyWindowInsetsListener(binding.main) { v, insets ->
             val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
-            v.updatePadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
+            val padding = if (insets.isVisible(WindowInsetsCompat.Type.ime())) {
+                androidx.core.graphics.Insets.max(systemBars, insets.getInsets(WindowInsetsCompat.Type.ime()))
+            } else {
+                systemBars
+            }
+            v.updatePadding(padding.left, padding.top, padding.right, padding.bottom)
             WindowInsetsCompat.CONSUMED
         }