turn off gestures - they are confusing with the map view

app/src/main/java/com/geeksville/mesh/MainActivity.kt

@@ -301,6 +301,8 @@ class MainActivity : AppCompatActivity(), Logging,
         val tab_layout = findViewById<TabLayout>(R.id.tab_layout)
         val pager = findViewById<ViewPager2>(R.id.pager)
         pager.adapter = tabsAdapter
+        pager.isUserInputEnabled =
+            false // Gestures for screen switching doesn't work so good with the map view
         TabLayoutMediator(tab_layout, pager) { tab, position ->
             // tab.text = tabInfos[position].text // I think it looks better with icons only
             tab.icon = getDrawable(tabInfos[position].icon)

app/src/main/java/com/geeksville/mesh/service/RadioInterfaceService.kt

@@ -316,7 +316,7 @@ class RadioInterfaceService : Service(), Logging {
                 debug("requested MTU result=$mtuRes")
                 mtuRes.getOrThrow() // FIXME - why sometimes is the result Unit!?!
 
-                fromNum = service.getCharacteristic(BTM_FROMNUM_CHARACTER)
+                fromNum = service.getCharacteristic(BTM_FROMNUM_CHARACTER)!!
 
                 // We must set this to true before broadcasting connectionChanged
                 isConnected = true