Bring DHCP Options to the UI

[dtx3k]

Prerequisites

• I have checked the Wiki and Discussions and found no answer

• I have searched other issues and found no duplicates

• I want to request a feature or enhancement and not ask a question

The problem

DHCP Options are available in the configuration (yaml file)
using the dhcp.dhcpv4.options array field

In some cases it is not possible to edit this file, for some even to difficult
unfortunately a widely used implementation of AdGuard Home, Home Assistant Addon, for example, makes it impossible to access the yaml file.
nevertheless i believe the options should be available via the web interface in any case

These options are used for multiple purposes but PXE is one of the most often mentioned
although #1585 #2573 #6575 do briefly mention the UI as means to configure the DHCP options, no request was opened asking this specifically

Proposed solution

Provide fields or a text box to add DHCP options in the DHCP part of the web interface of AdGuard Home
So the functionality is easier to use and becomes more accessible to a wider audience
and even replacing the dhcp.dhcpv4.options yaml config (or side by side)

Alternatives considered and additional information

No response