fix window insets related bugs (#4978)

- Fixes the background of the ComposeActivity in table mode which looked
weird since https://github.com/tuskyapp/Tusky/pull/4897
- The ComposeActivity in tablet mode will now resize when the keyboard
expands, the previously used fixed height would cause the bottom bar to
hide entered text on some devices, closes
https://github.com/tuskyapp/Tusky/issues/4973
- The bottom sheets in the compose view will now be in fully hidden
state by default, as some weirdness on some devices caused them to peek
over the bottom bar in half collapsed state. Please test @fin-w
- The bottom sheet in the image viewer will now expand a bit more in
edge-to-edge mode so it doesn't look it is deliberately obscured by the
system bar. The image also moves up a bit so it won't be covered by the
bottom sheet as much.
- The "Performing lookup…" bottom sheet won't be covered by the nav bar
anymore

app/src/main/res/values-large/styles.xml

@@ -4,11 +4,9 @@
         <item name="android:windowBackground">@drawable/background_dialog_activity</item>
         <item name="android:windowIsFloating">true</item>
         <item name="android:windowContentOverlay">@null</item>
-        <item name="android:windowSoftInputMode">stateUnspecified|adjustPan</item>
+        <item name="android:windowSoftInputMode">stateAlwaysVisible|adjustResize</item>
         <item name="android:windowCloseOnTouchOutside">false</item>
         <item name="android:windowActionModeOverlay">true</item>
-        <item name="android:windowMinWidthMajor">80%</item>
-        <item name="android:windowMinWidthMinor">80%</item>
     </style>
 
     <style name="TuskyDialogActivityBlackTheme" parent="@style/TuskyBlackTheme">
@@ -16,11 +14,9 @@
         <item name="android:windowBackground">@drawable/background_dialog_activity</item>
         <item name="android:windowIsFloating">true</item>
         <item name="android:windowContentOverlay">@null</item>
-        <item name="android:windowSoftInputMode">stateUnspecified|adjustPan</item>
+        <item name="android:windowSoftInputMode">stateAlwaysVisible|adjustResize</item>
         <item name="android:windowCloseOnTouchOutside">false</item>
         <item name="android:windowActionModeOverlay">true</item>
-        <item name="android:windowMinWidthMajor">80%</item>
-        <item name="android:windowMinWidthMinor">80%</item>
     </style>
 
 </resources>