Co-authored-by: Matthias Weis <matthias1.weis@web.de>

    java.lang.RuntimeException:
      at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:2957)
      at android.app.ActivityThread.handleLaunchActivity (ActivityThread.java:3032)
      at android.app.ActivityThread.-wrap11 (Unknown Source)
      at android.app.ActivityThread$H.handleMessage (ActivityThread.java:1696)
      at android.os.Handler.dispatchMessage (Handler.java:105)
      at android.os.Looper.loop (Looper.java:164)
      at android.app.ActivityThread.main (ActivityThread.java:6944)
      at java.lang.reflect.Method.invoke (Native Method)
      at com.android.internal.os.Zygote$MethodAndArgsCaller.run (Zygote.java:327)
      at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1374)
    Caused by: java.lang.IllegalArgumentException:
      at okhttp3.HttpUrl$Builder.parse (HttpUrl.java:1333)
      at okhttp3.HttpUrl.get (HttpUrl.java:916)
      at retrofit2.Retrofit$Builder.baseUrl (Retrofit.java:458)
      at com.github.gotify.api.ClientFactory.defaultClient (ClientFactory.java:47)
      at com.github.gotify.api.ClientFactory.clientToken (ClientFactory.java:28)
      at com.github.gotify.sharing.ShareActivity.onCreate (ShareActivity.java:82)
      at android.app.Activity.performCreate (Activity.java:7183)
      at android.app.Instrumentation.callActivityOnCreate (Instrumentation.java:1220)
      at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:2910)

Fixes #81

closes #185

Fixes #179

Fixes 164

Fixes #136

* Added setting to toggle precise date as default display

* Applied spotless

* Improved time format setting with a ListPreference

* Fixed default time format value in list preference

Co-authored-by: Rémi Rigal <remi.rigal@orange.com>