Added auto-answer support to mobile account

app/src/main/kotlin/com/tutpro/baresip/AccountScreen.kt

@@ -1288,8 +1288,8 @@ private fun AccountContent(
             Rel100()
             Dtmf()
             Redirect()
-            Answer()
         }
+        Answer()
         Voicemail()
         CountryCode()
         if (!ua.account.isMobile)

app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt

@@ -1828,14 +1828,19 @@ class BaresipService: Service() {
         setCallVolume()
         ensureCommunicationMode()
 
-        if (isIncoming)
+        if (isIncoming) {
             handleIncomingCall(call)
-        else
+            if (ua.account.answerMode == Api.ANSWERMODE_AUTO) {
+                Log.d(TAG, "Auto-answering external call ${call.callp}")
+                call.answer()
+            }
+        } else {
             postServiceEvent(ServiceEvent(
                 "call outgoing",
                 arrayListOf(ua.uap, call.callp),
                 System.nanoTime())
             )
+        }
     }
 
     fun handleExternalCallRemoved(telecomCall: android.telecom.Call) {

app/src/main/kotlin/com/tutpro/baresip/CallsScreen.kt

@@ -2,7 +2,6 @@ package com.tutpro.baresip
 
 import android.content.Context
 import android.content.Intent
-import android.net.Uri
 import androidx.activity.compose.BackHandler
 import androidx.compose.foundation.ExperimentalFoundationApi
 import androidx.compose.foundation.background