Update markview keyboard shortcut

- Update the keyboard shortcut to imitate Joplin behavior

lua/custom/plugins/init.lua

@@ -3,34 +3,37 @@
 --
 -- See the kickstart.nvim README for more information
 return {
-    {
-        'OXY2DEV/markview.nvim',
-        lazy = false, -- Recommended
-        -- ft = "markdown" -- If you decide to lazy-load anyway
-  
-        dependencies = {
-            'nvim-treesitter/nvim-treesitter',
-            'nvim-tree/nvim-web-devicons',
-        },
+  {
+    'OXY2DEV/markview.nvim',
+    lazy = false, -- Recommended
+    -- ft = "markdown" -- If you decide to lazy-load anyway
 
-        opts = {
-            initial_state = false,
-        },
-        config = function(_, opts)
-            require('markview').setup(opts)
-  
-            local splitToggle_state = false
-            vim.keymap.set('n', '<C-ö>', function()
-                if not splitToggle_state then
-                    -- The split toggle will not work unless markview is disabled in the initial window beforehand
-                    vim.cmd 'Markview disableAll'
-                    vim.cmd 'Markview splitEnable'
-                    splitToggle_state = true
-                else
-                    vim.cmd 'Markview splitDisable'
-                    splitToggle_state = false
-                end
-            end, { silent = true, desc = 'Toggle Markview split view' })
-        end,
+    dependencies = {
+      'nvim-treesitter/nvim-treesitter',
+      'nvim-tree/nvim-web-devicons',
     },
+
+    opts = {
+      initial_state = false,
+    },
+    config = function(_, opts)
+      require('markview').setup(opts)
+
+      -- This function imitates the behavior of Joplin when rendering notes
+      local splitToggle_state = 0
+      vim.keymap.set('n', '<C-ö>', function()
+        if splitToggle_state == 0 then
+          vim.cmd 'Markview enableAll'
+          splitToggle_state = 1
+        elseif splitToggle_state == 1 then
+          vim.cmd 'Markview splitEnable'
+          splitToggle_state = 2
+        else
+          vim.cmd 'Markview splitDisable'
+          vim.cmd 'Markview disableAll'
+          splitToggle_state = 0
+        end
+      end, { silent = true, desc = 'Toggle Markview split view' })
+    end,
+  },
 }