feat: add multicursors-nvim plugin

multicursors-nvim with hydra dependency and static config.

modules/plugins/hydra/config.nix

@@ -0,0 +1,50 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  inherit (lib.modules) mkIf;
+  cfg = config.vim.hydra;
+in {
+  config = mkIf cfg.enable {
+    vim = {
+      startPlugins = [];
+      lazy.plugins.hydra = {
+        package = "hydra-nvim";
+        setupModule = "hydra";
+        #inherit (cfg) setupOpts;
+        setupOpts = {
+          debug = false;
+          exit = false;
+          foreign_keys = null;
+          color = "red";
+          timeout = false;
+          invoke_on_body = false;
+          hint = {
+            show_name = true;
+            position = "bottom";
+            offset = 0;
+            float_opts = {};
+          };
+          on_enter = null;
+          on_exit = null;
+          on_key = null;
+        };
+
+        after = ''
+          -- custom lua code to run after plugin is loaded
+          print('multicursors loaded')
+        '';
+
+        event = ["DeferredUIEnter"];
+        cmd = ["MCstart" "MCvisual" "MCclear" "MCpattern" "MCvisualPattern" "MCunderCursor"];
+      };
+      #keys = [
+      #  (mkKeymap "n" mappings.mcStart "<cmd>MCstart<cr>" {desc = "Create a selection for selected text or word under the cursor [multicursors.nvim]";})
+      #];
+      # dependencies = [
+      #   config.vim.lazy.plugins.hydra # hydra.nvim - Create custom submodes and menus
+      # ];
+    };
+  };
+}