nvim: use dressing and telescope for ui select.

nvim/lua/user/ui/telescope.lua

@@ -0,0 +1,18 @@
+local border = {
+    prompt = { " " },
+    results = { " " },
+    preview = { " " },
+}
+
+return {
+    border = border,
+    dropdown = {
+        previewer = false,
+        prompt_title = false,
+        layout_strategy = "horizontal",
+        layout_config = {
+            prompt_position = "top",
+        },
+        borderchars = border,
+    }
+}