Merge pull request #2284 from pi-hole/bugfix/source_webpage

Added missing `.` for sourced file.

automated install/basic-install.sh

@@ -2429,7 +2429,7 @@ main() {
             # generate a random password
             pw=$(tr -dc _A-Z-a-z-0-9 < /dev/urandom | head -c 8)
             # shellcheck disable=SC1091
-            /opt/pihole/webpage.sh
+            . /opt/pihole/webpage.sh
             echo "WEBPASSWORD=$(HashPassword ${pw})" >> ${setupVars}
         fi
     fi