Add obsidian.nvim plugin, add minor changes related to home-dir cleanup

src_files/.config/nvim/lua/plugins_lazy/obsidian.lua

@@ -0,0 +1,16 @@
+return {
+    {
+        "obsidian-nvim/obsidian.nvim",
+        version = "*", -- '*' for latest release, not latest commit
+        ft = "markdown",
+        opts = {
+            workspaces = {
+                {
+                    name = "notes",
+                    path = os.getenv("DIR_NOTES"),
+                },
+            },
+            legacy_commands = false,
+        },
+    },
+}