feat: add toggle diagnostics command

.config/nvim/lua/tovi/core/commands.lua

@@ -1,15 +1,21 @@
-
 local function ToggleTabs()
-    local options = {"tabstop", "softtabstop", "shiftwidth"}
+	local options = { "tabstop", "softtabstop", "shiftwidth" }
 
-    for _, option in ipairs(options) do
-        local current_value = vim.opt[option]:get()
-        vim.opt[option] = (current_value == 4) and 2 or 4
-    end
+	for _, option in ipairs(options) do
+		local current_value = vim.opt[option]:get()
+		vim.opt[option] = (current_value == 4) and 2 or 4
+	end
 end
 
-vim.api.nvim_create_user_command(
-    'ToggleTabs',
-    ToggleTabs,
-    { nargs = 0 }
-)
+vim.api.nvim_create_user_command("ToggleTabs", ToggleTabs, { nargs = 0 })
+
+vim.api.nvim_create_user_command("ToggleDiagnostics", function()
+	if vim.g.diagnostics_enable == nil or vim.g.diagnostics_enable then
+		vim.g.diagnostics_enable = false
+		vim.diagnostic.enable(false)
+		return
+	end
+
+	vim.g.diagnostics_enable = true
+	vim.diagnostic.enable(true)
+end, {})