Fix warnings from updating

config.nix

@@ -109,12 +109,14 @@
 
     neo-tree = {
       enable = true;
-      closeIfLastWindow = true;
+      settings = {
+        close_if_last_window = true;
         filesystem = {
-        filteredItems = {
+          filtered_items = {
             visible = true;
-          hideDotfiles = false;
+            hide_dotfiles = false;
-          hideGitignored = false;
+            hide_gItignored = false;
+          };
         };
       };
     };
@@ -162,6 +164,7 @@
     mkdnflow = {
       enable = true;
 
+      settings = {
         mappings = {
           MkdnEnter = {
             key = "<CR>";
@@ -169,6 +172,7 @@
           };
         };
       };
+    };
 
     lsp = {
       enable = true;