feat(nvim): Markdown handling improvements

- marksman: Trimmed config file: removed comments, remove default
  settings
- fix: ftplugin for codelens: provide current buffer
- new: Add obsidian.nvim plugin to replace markdown-oxide lsp

common/.config/nvim/lua/plugins/lang-markdown.lua

@@ -69,6 +69,30 @@ return {
         end,
     },
 
+    {
+        "obsidian-nvim/obsidian.nvim",
+        version = "*",
+        enabled = true,
+        opts = {
+            workspaces = {
+                {
+                    name = "personal",
+                    path = "~/Code/Notes",
+                },
+            },
+            completions = {
+                blink = true,
+                nvim_cmp = false,
+            },
+            comment = { enabled = true },
+            attachments = { img_folder = ".artifacts/img" },
+            footer = { format = "{{backlinks}} backlinks" },
+            legacy_commands = false,
+            ui = { enable = false },
+            frontmatter = { enabled = false },
+        },
+    },
+
     {
         "bullets-vim/bullets.vim",
         ft = { "markdown", "text", "gitcommit", "scratch" },