refactor: clean up SSH configuration and remove unused secrets

config/home-manager/packages/common/secrets.nix

@@ -24,6 +24,21 @@
         path = ".ssh/authorized_keys";
         mode = "0644";
       };
+      personalSshConf = {
+        reference = "op://Dotfiles/SSH Configs/personal";
+        path = ".ssh/config.d/personal.conf";
+        mode = "0644";
+      };
+      workDevSshConf = {
+        reference = "op://Dotfiles/SSH Configs/work-dev";
+        path = ".ssh/config.d/work-dev.conf";
+        mode = "0644";
+      };
+      workProdSshConf = {
+        reference = "op://Dotfiles/SSH Configs/work-prod";
+        path = ".ssh/config.d/work-prod.conf";
+        mode = "0644";
+      };
     };
   };
 }