No error message if provide wrong mailserver or bootnode url

[annadanchenko]

Description

Type: Bug

Summary: There is no error message if provided url is considered as invalid. Save button is not enabled and user has no clues on what's wrong and what is expected format (e.g. as in #7746)

We can show error above the filed with a message on what's wrong and share some expected format for url... Or can add a link to tech doc where adding custom mailserver and sample of the url format/example are provided...

Expected behavior

Explanation on why the provided url is invalid and what's the valid format

Actual behavior

No error message

Reproduction

For mailserver:

• Open Status -> Profile -> Advanced -> Mailserver
• Turn off automatic selection
• Tap + to add custom mailserver
• provide Name and type "invalid" into mailserver address field
• Check Save button and if there is any error message

For bootnode:

• enable bootnode in Profile -> Advanced -> Bootnodes
• sign in and go again to Profile -> Advanced -> Bootnodes
• Tap + to add bootnode
• provide Name and type "invalid" into bootnode address field

Additional Information

• Status version: all previous releases and current nightly
• Operating System: Android and iOS

Logs

...

[churik]

close to #7333 - but seems there is no error anymore, before it was Re-matches must match again a string

[rasom]

is this enough?

[mandrigin]

@rasom also, as a placeholder, can we provide an example enode id, so user knows what to enter there?

[rasom]

I'm not sure it will fit well in that tooltip, but I'll try

[rasom]

@mandrigin @annadanchenko what about this one?

[mandrigin]

@rasom I thought about it being in a placeholder of the text field, just like “specify a name”.
It would still be cool to add that, so when a person opens it for the first time, they know what to do.

And let’s keep this updated error message too.