ExactCalculator: Clean-up and update manifest

Also move windowSoftInputMode there from the theme

Change-Id: Ic2baceccd816e6e927ac478b5da3ed6141c5cc7f
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index dcad905..2d820f0 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -25,17 +25,14 @@
         android:appCategory="productivity"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
+        android:windowSoftInputMode="stateAlwaysHidden"
         android:supportsRtl="true">
 
         <activity
             android:name=".Calculator"
-            android:label="@string/app_name"
             android:launchMode="singleTask"
             android:exported="true"
             android:theme="@style/Theme.Calculator">
-            <layout
-                android:minHeight="220dp"
-                android:minWidth="230dp" />
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
diff --git a/res/values/themes.xml b/res/values/themes.xml
index d9915e9..f9c82d7 100644
--- a/res/values/themes.xml
+++ b/res/values/themes.xml
@@ -20,7 +20,6 @@
     <style name="Theme" parent="Theme.Material3.DayNight">
         <item name="android:statusBarColor">@color/display_background_color</item>
         <item name="android:windowLightStatusBar">?isLightTheme</item>
-        <item name="android:windowSoftInputMode">stateAlwaysHidden</item>
         <item name="android:navigationBarColor">?colorSurface</item>
         <item name="android:windowLightNavigationBar">?isLightTheme</item>
     </style>