Show a different error for DoT

app/src/main/java/com/frostnerd/smokescreen/dialog/NewServerDialog.kt

@@ -292,7 +292,8 @@ class NewServerDialog(
 
                 input.error = if (valid) {
                     null
-                } else context.getString(R.string.error_invalid_url)
+                } else if(dnsOverHttps) context.getString(R.string.error_invalid_url)
+                else context.getString(R.string.error_invalid_host)
             }
 
             override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {

app/src/main/res/values/strings.xml

@@ -18,6 +18,7 @@
     <string name="all_close">Close</string>
 
     <string name="error_invalid_url">Please provide a valid url.</string>
+    <string name="error_invalid_host">Please provide a valid host.</string>
     <string name="error_invalid_pin">Please provide your PIN.</string>
     <string name="error_invalid_servername">Please provide a name.</string>
     <string name="error_webview_missing">WebView package not found, is it currently updating or removed?</string>