backwards: Add localisation module

hosts/backwards/modules/localisation/default.nix

@@ -0,0 +1,18 @@
+{ ... }:
+{
+  time.timeZone = "Europe/Stockholm";
+
+  i18n.defaultLocale = "en_GB.UTF-8";
+
+  i18n.extraLocaleSettings = {
+    LC_ADDRESS = "sv_SE.UTF-8";
+    LC_IDENTIFICATION = "sv_SE.UTF-8";
+    LC_MEASUREMENT = "sv_SE.UTF-8";
+    LC_MONETARY = "sv_SE.UTF-8";
+    LC_NAME = "sv_SE.UTF-8";
+    LC_NUMERIC = "sv_SE.UTF-8";
+    LC_PAPER = "sv_SE.UTF-8";
+    LC_TELEPHONE = "sv_SE.UTF-8";
+    LC_TIME = "sv_SE.UTF-8";
+  };
+}