fix(nvim): add some additional keybindings

pkgs/nvim/config/keymaps.nix

@@ -1,8 +1,6 @@
-# Thanks for the keybinds primeagen and folke!
 {
   globals.mapleader = " ";
 
-  # TODO: Move general mappings to which-key
   keymaps = [
     # better up/down
     {
@@ -46,6 +44,33 @@
       };
     }
 
+    # Clear search with <esc>
+    {
+      mode = ["i" "n"];
+      key = "<esc>";
+      action = "<cmd>noh<cr><esc>";
+      options = {
+        desc = "Escape and Clear hlsearch";
+      };
+    }
+
+    # Add undo break-points
+    {
+      mode = "i";
+      key = ",";
+      action = ",<c-g>u";
+    }
+    {
+      mode = "i";
+      key = ".";
+      action = ".<c-g>u";
+    }
+    {
+      mode = "i";
+      key = ";";
+      action = ";<c-g>u";
+    }
+
     # Move to window using the <ctrl> hjkl keys
     {
       mode = "n";
@@ -404,6 +429,7 @@
       };
     }
 
+    # better indenting
     {
       mode = "v";
       key = "<";