fix #431, make sure the proper day gets opened after clicking a widget

app/src/main/AndroidManifest.xml

@@ -26,6 +26,7 @@
 
         <activity
             android:name=".activities.SplashActivity"
+            android:launchMode="singleTask"
             android:theme="@style/SplashTheme">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
@@ -34,7 +35,9 @@
             </intent-filter>
         </activity>
 
-        <activity android:name=".activities.MainActivity">
+        <activity
+            android:name=".activities.MainActivity"
+            android:launchMode="singleTask">
             <meta-data
                 android:name="android.app.default_searchable"
                 android:resource="@xml/searchable"/>

app/src/main/kotlin/com/simplemobiletools/calendar/activities/MainActivity.kt

@@ -209,6 +209,12 @@ class MainActivity : SimpleActivity(), RefreshRecyclerViewListener {
         }
     }
 
+    override fun onNewIntent(intent: Intent?) {
+        super.onNewIntent(intent)
+        setIntent(intent)
+        checkOpenIntents()
+    }
+
     private fun storeStateVariables() {
         config.apply {
             mStoredIsSundayFirst = isSundayFirst