update the launcher name to Calculator

app/src/main/AndroidManifest.xml

@@ -6,7 +6,7 @@
     <application
         android:allowBackup="true"
         android:icon="@mipmap/launcher"
-        android:label="@string/app_name"
+        android:label="@string/app_launcher_name"
         android:theme="@style/AppTheme">
         <activity
             android:name=".activities.MainActivity"

app/src/main/res/values-it/strings.xml

@@ -1,5 +1,6 @@
 <resources>
     <string name="app_name">Simple Calculator</string>
+    <string name="app_launcher_name">Calculator</string>
     <string name="copied_to_clipboard">Valore copiato negli appunti</string>
 
     <!-- About -->

app/src/main/res/values-ja/strings.xml

@@ -1,5 +1,6 @@
 <resources>
     <string name="app_name">シンプル電卓</string>
+    <string name="app_launcher_name">Calculator</string>
     <string name="copied_to_clipboard">値をクリップボードにコピーしました</string>
 
     <!-- About -->

app/src/main/res/values-sv/strings.xml

@@ -1,5 +1,6 @@
 <resources>
     <string name="app_name">Simple Calculator</string>
+    <string name="app_launcher_name">Calculator</string>
     <string name="copied_to_clipboard">Värdet kopierat till urklippet</string>
 
     <!-- About -->

app/src/main/res/values/strings.xml

@@ -1,5 +1,6 @@
 <resources>
     <string name="app_name">Simple Calculator</string>
+    <string name="app_launcher_name">Calculator</string>
     <string name="copied_to_clipboard">Value copied to clipboard</string>
 
     <!-- About -->