make the inputs "go up" when the keyboard is shown

closes #52

Author: Sesu8642

android/AndroidManifest.xml

@@ -11,12 +11,14 @@
       android:label="@string/app_name"
       tools:ignore="UnusedAttribute"
       android:theme="@style/GdxTheme">
+      <!-- setting windowSoftInputMode in order to make the inputs "go up" when the keyboard is shown -->
     <activity
         android:name="de.sesu8642.feudaltactics.android.AndroidLauncher"
         android:label="@string/app_name"
         android:screenOrientation="user"
         android:configChanges="keyboard|keyboardHidden|navigation|orientation|screenSize|screenLayout"
-        android:exported="true">
+        android:exported="true"
+        android:windowSoftInputMode="adjustResize">
         <intent-filter>
         <action android:name="android.intent.action.MAIN"/>
         <category android:name="android.intent.category.LAUNCHER"/>