refactor: Split plugin configurations from other.nix into separate files

modules/programs/nvim/new_plugins/obsidian.nix

@@ -0,0 +1,29 @@
+{ config, lib, pkgs, inputs, ... }:
+
+let
+  inherit (lib) mkEnableOption mkIf readFile;
+in
+{
+  home-manager.users.moritz.programs.nixvim = {
+    plugins.obsidian = {
+      enable = true;
+      settings = {
+        ui.enable = false;
+        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
+        '';
+      };
+    };
+  };
+}