Create scss.lua

Add a `bp` snippet for adding a new breakpoint.

lua/opdavies/snippets/ft/scss.lua

@@ -0,0 +1,10 @@
+local fmta = require("luasnip.extras.fmt").fmta
+local ls = require "luasnip"
+
+local i = ls.insert_node
+
+local M = {
+  bp = fmta("@include breakpoint(<>) {\n  <>\n}", { i(1), i(0) }),
+}
+
+return M