Only get the state of importance if we have running processes

[dshokouhi]

Summary

Fixes the following sentry by skipping the iteration if we have no running processes:

java.lang.NullPointerException: Attempt to invoke interface method 'java.util.Iterator java.util.List.iterator()' on a null object reference
    at io.homeassistant.companion.android.sensors.AppSensorManager.updateImportanceCheck(AppSensorManager.kt:243)
    at io.homeassistant.companion.android.sensors.AppSensorManager.requestSensorUpdate(AppSensorManager.kt:100)
    at io.homeassistant.companion.android.sensors.SensorDetailFragment$onCreatePreferences$$inlined$let$lambda$1.onPreferenceChange(SensorDetailFragment.kt:103)
    at androidx.preference.Preference.callChangeListener(Preference.java:1118)
    at androidx.preference.TwoStatePreference.onClick(TwoStatePreference.java:67)
    at androidx.preference.Preference.performClick(Preference.java:1182)
    at androidx.preference.Preference.performClick(Preference.java:1166)
    at androidx.preference.SwitchPreference.performClick(SwitchPreference.java:195)
    at androidx.preference.Preference$1.onClick(Preference.java:181)
    at android.view.View.performClick(View.java:6307)
    at android.view.View$PerformClick.run(View.java:24948)
    at android.os.Handler.handleCallback(Handler.java:790)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:164)
    at android.app.ActivityThread.main(ActivityThread.java:6523)
    at java.lang.reflect.Method.invoke(Method.java)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:857)

Screenshots

Link to pull request in Documentation repository

Documentation: home-assistant/companion.home-assistant#

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