keepAppDataMax's defaultValue is not unified

[yfdyh000]

The input box displays 20 but said that the default value is 30.

ScreenshotTile/app/src/main/res/xml/pref_advanced.xml

Line 105 in aa1eaf1

android:defaultValue="20"

ScreenshotTile/app/src/main/java/com/github/cvzi/screenshottile/utils/PrefManager.kt

Line 616 in aa1eaf1

)?.toIntOrNull() ?: 30

ScreenshotTile/app/src/main/res/values/strings_advanced.xml

Line 33 in aa1eaf1

<string name="pref_key_keep_app_data_max_default" translatable="false">30</string>

[cvzi]

Thanks for the detailed report!