feat: add toml formatting

lua/plugins/formatting.lua

@@ -11,11 +11,26 @@ return {
 			javascriptreact = { "prettierd" },
 			json = { "prettierd" },
 			jsonc = { "prettierd" },
+			toml = { "taplo" },
 			typescript = { "prettierd" },
 			typescriptreact = { "prettierd" },
 		},
 		format_on_save = {
 			lsp_fallback = true,
 		},
+		formatters = {
+			taplo = {
+				args = function()
+					-- conform.nvim does not parse bash envvars, so we do it ourselves
+					local CONFIG_PATH = os.getenv("HOME") .. "/.config/taplo/taplo.toml"
+					return {
+						"format",
+						"--config",
+						CONFIG_PATH,
+						"-",
+					}
+				end,
+			},
+		},
 	},
 }