Move AlwaysOnVpn from App manager to Network

Use Shizuku to list users and list accounts
Add package selector for Lock task mode
Specify an Activity before start lock task mode
Improve UI design

app/src/main/java/com/bintianqi/owndroid/dpm/ShizukuActivate.kt

@@ -114,6 +114,28 @@ fun ShizukuActivate() {
         ) {
             Text(text = stringResource(R.string.list_owners))
         }
+        Button(
+            onClick = {
+                coScope.launch{
+                    outputText = service!!.execute("pm list users")
+                    outputTextScrollState.animateScrollTo(0)
+                }
+            },
+            enabled = enabled
+        ) {
+            Text(text = stringResource(R.string.list_users))
+        }
+        Button(
+            onClick = {
+                coScope.launch{
+                    outputText = service!!.execute("dumpsys account")
+                    outputTextScrollState.animateScrollTo(0)
+                }
+            },
+            enabled = enabled
+        ) {
+            Text(text = stringResource(R.string.list_accounts))
+        }
         Spacer(Modifier.padding(vertical = 5.dp))
 
         AnimatedVisibility(showDeviceAdminButton && showDeviceOwnerButton) {