add sops as a shared module for home-manager

also adds wakatime-api-key variable to personal sops-config (using new
sops capability)

Signed-off-by: ahuston-0 <aliceghuston@gmail.com>

modules/base.nix

@@ -1,4 +1,4 @@
-{ lib, ... }:
+{ lib, sops-nix, ... }:
 {
   boot.default = lib.mkDefault true;
 
@@ -18,5 +18,6 @@
   home-manager = {
     useGlobalPkgs = true;
     useUserPackages = true;
+    sharedModules = [ sops-nix.homeManagerModules.sops ];
   };
 }