add handling for application_preferences intent

app/build.gradle

@@ -62,7 +62,7 @@ android {
 }
 
 dependencies {
-    implementation 'com.github.SimpleMobileTools:Simple-Commons:03e4d214b1'
+    implementation 'com.github.SimpleMobileTools:Simple-Commons:99c8b8c007'
     implementation 'me.grantland:autofittextview:0.2.1'
     implementation 'net.objecthunter:exp4j:0.4.8'
 

app/src/main/AndroidManifest.xml

@@ -43,7 +43,13 @@
         <activity
             android:name=".activities.SettingsActivity"
             android:label="@string/settings"
-            android:parentActivityName=".activities.MainActivity" />
+            android:parentActivityName=".activities.MainActivity" >
+
+            <intent-filter>
+                <action android:name="android.intent.action.APPLICATION_PREFERENCES" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+        </activity>
 
         <activity
             android:name="com.simplemobiletools.commons.activities.AboutActivity"