feat(nvim): add flutter development tools

pkgs/nvim/config/default.nix

@@ -56,6 +56,7 @@
 
     # ./utils/better-escape.nix
     ./utils/flash.nix # better search labels
+    ./utils/flutter-tools.nix
     ./utils/hardtime.nix # hints to get better at vim
     # ./utils/harpoon.nix # better navigation between files & terminals
     ./utils/illuminate.nix # highlight other uses of current word

pkgs/nvim/config/lsp/lsp.nix

@@ -99,6 +99,8 @@
             };
           };
         };
+
+        dartls.enable = true;
       };
       # keymaps = {
       #   silent = true;

pkgs/nvim/config/utils/flutter-tools.nix

@@ -0,0 +1,11 @@
+{pkgs, ...}: {
+  extraPlugins = with pkgs.vimPlugins; [flutter-tools-nvim];
+
+  extraConfigLua = ''
+    require("flutter-tools").setup {
+      debugger = {
+        enabled = true
+      }
+    }
+  '';
+}