[Crash] Skip adding scan repo

[userkilled]

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. I off internet
2. Start process add repo
3. Click to "Skip"
4. See error

Smartphone (please complete the following information):

• Device: Blackview BV 6300 Pro
• OS: Android 10
• Version: 0.6.3

Additional context
FATAL EXCEPTION: main
Process: com.looker.droidify, PID: 25239
java.lang.NullPointerException
at com.looker.droidify.ui.repository.EditRepositoryFragment.invalidateState(SourceFile:3)
at com.looker.droidify.ui.repository.EditRepositoryFragment$onSaveRepositoryClick$1.invokeSuspend(SourceFile:73)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(Unknown Source:8)
at kotlinx.coroutines.DispatchedTask.run(Unknown Source:94)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7386)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:980)
Suppressed: kotlinx.coroutines.internal.DiagnosticCoroutineContextException: [StandaloneCoroutine{Cancelling}@3578705, Dispatchers.Main]