Support for longer host/server names @NTP server or @MQTT host settings

[heinrich-peters]

Is your feature request related to a problem? Please describe.
Specifying server names as FQDN seems good practice to me. The MQTT hostname and the NTP server name currently support only 32 characters.

Describe the solution you'd like
It would be great, if both input fields support longer inputs to allow specifying the server/host names as FQDN. It might be best to change the RegEx to verify the existence of "."-s in the hostname to ensure, that the hostname (without the domain part) does no exceed 32 characters. E.g. move from current test "^.{0,32}$" to "^[^.]{0,32}([.][^.]{1,32})*[.]?$". This will support

• the current 32 character hostname definition;
• FQDN with <32charaterHostname>.<32characterDomain>;
• FQDN with <32charaterHostname>.<32characterSub1Domain>.<32characterSub2Domain>.<32characterDomain>;
• ending hostname or FQDN with a "."

Thanks and BR, Heinrich

[proddy]

Nice addition. The 32 limit can be easily changed in
https://github.com/proddy/EMS-ESP/blob/908a7cda34a56ec874212c11acfd5909a1be5ad4/interface/src/validators/isHostname.ts#L1

and it shouldn't be too hard to add an extra validator for FQDN