[Feature Request] Filter Enable/Disable Overlay

In the world of DNS sinkhole for ads users more often than not believe quantity > quality in regards to filters.

For this reason it is not uncommon for users to have lists of 600,00 > 2,000,000 rules enabled at any one time.

Whilst enabling/disabling filters, an overlay disabling the user from carrying out further actions within AGH is required to prevent excessive functions taking place which can considerably slow down the machine.
As part of this, a message will be required noting that internet connectivity may be affected while the process is being completed.