refactor: move database services into its own module

Changed files
+7 -3
systems
koumakan
+6
systems/koumakan/services/databases/default.nix
···
+
{...}: {
+
imports = [
+
./postgresql.nix
+
./redis.nix
+
];
+
}
+1 -3
systems/koumakan/services/default.nix
···
imports = [
./nginx.nix
-
# databases
-
./postgresql.nix
-
./redis.nix
+
./databases
./attic.nix
systems/koumakan/services/postgresql.nix systems/koumakan/services/databases/postgresql.nix
systems/koumakan/services/redis.nix systems/koumakan/services/databases/redis.nix