Always process DNS and DHCP settings in installer (#1630)

* Always process DNS and DHCP settings in installer

* Make sure dnsmasq config exists before modifying it

Signed-off-by: Mcat12 <newtoncat12@yahoo.com>

* Make sure the dnsmasq config directory exists

Signed-off-by: Mcat12 <newtoncat12@yahoo.com>

* Only remove the DHCP config if it exists (fixes tests, hopefully)

Signed-off-by: Mcat12 <newtoncat12@yahoo.com>

automated install/basic-install.sh

@@ -1503,16 +1503,11 @@ finalExports() {
   source "${setupVars}"
   source "${PI_HOLE_LOCAL_REPO}/advanced/Scripts/webpage.sh"
 
-  if [[ "${DNS_FQDN_REQUIRED}" != "" ]] ; then
   # Look for DNS server settings which would have to be reapplied
-    ProcessDNSSettings
-  fi
-
-  if [[ "${DHCP_ACTIVE}" != "" ]] ; then
-    # Look for DHCP server settings which would have to be reapplied
-    ProcessDHCPSettings
-  fi
+  ProcessDNSSettings
 
+  # Look for DHCP server settings which would have to be reapplied
+  ProcessDHCPSettings
 }
 
 # Install the logrotate script