Add treesitter-context

lua/hardline/parts/treesitter-context.lua

@@ -0,0 +1,17 @@
+local ok, gps = pcall(require, "nvim-gps")
+if not ok then gps = nil end
+
+local function get_context()
+  if not gps or not gps.is_available() then
+    return ""
+  end
+  return gps.get_location()
+end
+
+local function get_item()
+  return get_context()
+end
+
+return {
+  get_item = get_item,
+}