conceallevel warning with conceallevel=2

### 🐛 Describe the bug

Hi,

I get warnings for the conceallevel even though it's set at 2:
"Obsidian additional syntax features require 'conceallevel' to be set to 1 or 2, but you have 'conceallevel' set to '3'. "

my way of reproducing is restart nvim and open an md file `:vsp my_file.md`. And I always check before with `:set conceallevel?` to see if maybe there is something that changes the conceallevel but I don't see it. I believe there is a command to check if a plugin or a line code in the config that changes it but I don't remember it.

Thanks

### Config

```
require('obsidian').setup {
workspaces = {
{
name = 'work',
path = '~/Documents/Brain',
},
{
name = 'no-vault',
path = function()
-- alternatively use the CWD:
-- return assert(vim.fn.getcwd())
return assert(vim.fs.dirname(vim.api.nvim_buf_get_name(0)))
end,
overrides = {
notes_subdir = vim.NIL, -- have to use 'vim.NIL' instead of 'nil'
new_notes_location = 'current_dir',
templates = {
folder = vim.NIL,
},
disable_frontmatter = true,
},
},
},
daily_notes = {
-- Optional, if you keep daily notes in a separate directory.
folder = 'dailies',
-- Optional, if you want to change the date format for the ID of daily notes.
date_format = '%Y-%m-%d',
-- Optional, if you want to change the date format of the default alias of daily notes.
alias_format = '%B %-d, %Y',
-- Optional, if you want to automatically insert a template from your template directory like 'daily.md'
template = nil,
},
-- Optional, customize how note IDs are generated given an optional title.
---@param title string|?
---@return string
note_id_func = function(title)
-- Create note IDs in a Zettelkasten format with a timestamp and a suffix.
-- In this case a note with the title 'My new note' will be given an ID that looks
-- like '1657296016-my-new-note', and therefore the file name '1657296016-my-new-note.md'
local prefix = ''
if title ~= nil then
-- If title is given, transform it into valid file name.
prefix = title:gsub(' ', '-'):gsub('[^A-Za-z0-9-]', ''):lower()
else
-- If title is nil, just add 4 random uppercase letters to the suffix.
for _ = 1, 4 do
prefix = prefix .. string.char(math.random(65, 90))
end
end
return prefix .. '-' .. tostring(os.time())
end,
-- URL it will be ignored but you can customize this behavior here.
---@param url string
follow_url_func = function(url)
-- Open the URL in the default web browser.
vim.fn.jobstart { 'xdg-open', url } -- linux
end,
mappings = {
['oy'] = {
action = function()
return vim.cmd 'ObsidianYesterday'
end,
opts = { buffer = true },
},
['ot'] = {
action = function()
return vim.cmd 'ObsidianTomorrow'
end,
opts = { buffer = true },
},
['oo'] = {
action = function()
return vim.cmd 'ObsidianToday'
end,
opts = { buffer = true },
},
[''] = {
action = function()
return vim.cmd 'ObsidianQuickSwitch'
end,
opts = { buffer = true },
},
},
}

```

### Environment

NVIM v0.9.5
Build type: Release
LuaJIT 2.1.1692716794

system vimrc file: "$VIM/sysinit.vim"
fall-back for $VIM: "/__w/neovim/neovim/build/nvim.AppDir/usr/share/nvim"

Run :checkhealth for more info
Obsidian.nvim v3.7.6 (d70f3289399c25153b7f503b838afbf981124a37)
Status:
• buffer directory: nil
• working directory: /home/isos9
Workspaces:
✓ active workspace: Workspace(name='no-vault', path='/home/isos9', root='/home/isos9')
✗ inactive workspace: Workspace(name='work', path='/home/isos9/Documents/Brain', root='/home/isos9/Documents/Brain')
Dependencies:
✓ plenary.nvim: 253d34830709d690f013daf2853a9d21ad7accab
✓ nvim-cmp: d3a2833c118843859c667f64b6169e22bffe13d0
✓ telescope.nvim: 4522d7e3ea75ffddabdc39957168a8a7060b5df0
Integrations:
✓ picker: TelescopePicker()
✓ completion: enabled (nvim-cmp) ✗ refs, ✗ tags, ✗ new
all sources:
• luasnip
• nvim_lsp
• path
• nvim_lua
• buffer
Tools:
✓ rg: ripgrep 14.1.0
Environment:
• operating system: Linux
Config:
• notes_subdir: nil

Reproduce the warning after restarting Neovim, opening an .md file with `:vsp my_file.md`, and checking `:set conceallevel?`. Start from the Obsidian.nvim setup and the conceallevel warning path; determine why the warning reports 3 when the user reports 2, then verify the warning is absent when the setting is correct.

Written by the indexing model from the issue text.