feat(nvim): add obsidian plugin

modules/programs/nvim/new_plugins/other.nix

@@ -58,6 +58,25 @@ in
         plugins.helpview.enable = true;
         performance.combinePlugins.standalonePlugins = [ "helpview.nvim" ];
       }
+      {
+        plugins.obsidian.enable = true;
+        plugins.obsidian.settings = {
+          dir = "~/Documents/Nextcloud/Notes/zettelkasten/";
+          note_id_func.__raw = ''
+            function(title)
+              if title ~= nil then
+                return title
+              else
+                suffix = ""
+                for _ = 1, 4 do
+                  suffix = suffix .. string.char(math.random(65, 90))
+                end
+                return tostring(os.date("%Y-%m-%d")) .. "-" .. suffix
+              end
+            end
+          '';
+        };
+      }
     ];
   };
 }