chore: validate wallet name

[theborakompanioni]

Resolves #683.

Before this commit, the wallet name has been validated only on the backend.
After this commit is applied, it will also be validated by the frontend.

The validation is a bit more strict than "necessary", only numbers, letters and _ (underscore) will be allowed from now on.

[kristapsk]

Why not also allow hyphen-minus (-)? I personally use that for JM wallet names instead of underscore.

[theborakompanioni]

Why not also allow hyphen-minus (-)? I personally use that for JM wallet names instead of underscore.

Now also allows hyphens. Error feedback message has been changed to

Please choose a valid wallet name: Use only letters, numbers, underscores or hyphens.

Additionally, the length of the wallet name has been limited to 234 chars.
(Notice that, while JM allows longer names, it will create a wallet but later fail loading it.)

Thanks for the feedback @kristapsk 🙏

[kristapsk]

(Notice that, while JM allows longer names, it will create a wallet but later fail loading it.)

Interesting, something to test and likely fix in JM.

[kristapsk]

Additionally, the length of the wallet name has been limited to 234 chars.
(Notice that, while JM allows longer names, it will create a wallet but later fail loading it.)

With which OS, filesystem and Python version do you experienced this? I cannot reproduce under Linux, ext4 and Python 3.11.4, at least not with cli tools. You had this both with scripts and RPC API or only RPC API?

[theborakompanioni]

Additionally, the length of the wallet name has been limited to 234 chars.
(Notice that, while JM allows longer names, it will create a wallet but later fail loading it.)

With which OS, filesystem and Python version do you experienced this? I cannot reproduce under Linux, ext4 and Python 3.11.4, at least not with cli tools. You had this both with scripts and RPC API or only RPC API?

Hey @kristapsk! (Mostly) everything I do and test is with the RPC API!
I am using the regtest docker image based on Debian GNU/Linux 12 (bookworm), fs ext4, python v3.11.6.