feat: Add better highlighting and new CI abilities (#355)

* Revert "Revert "fix: Better highlights (#344)" (#350)"

This reverts commit 7950fc8ba0.

* better highlights take 2

* fixup

* install fd find for sameness

* add some debug output

* more deterministic

* better ci

lua/tests/pickers/find_files__readme.lua

@@ -0,0 +1,7 @@
+local tester = require('telescope.pickers._tests')
+
+tester.builtin_picker('find_files', 'README.md', {
+  post_close = {
+    {'README.md', function() return vim.fn.fnamemodify(vim.api.nvim_buf_get_name(0), ":.") end },
+  }
+})

lua/tests/pickers/find_files__with_ctrl_n.lua

@@ -0,0 +1,24 @@
+pcall(function() RELOAD('telescope') end)
+
+local builtin = require('telescope.builtin')
+local tester = require('telescope.pickers._tests')
+
+local key = 'find_files'
+local input =  'fixtures/file<c-p>'
+local expected = 'lua/tests/fixtures/file_2.txt'
+local get_actual = function()
+  return vim.fn.fnamemodify(vim.api.nvim_buf_get_name(0), ":.")
+end
+
+-- local on_complete_item = tester.picker_feed(input, expected, get_actual, true)
+-- 
+-- builtin[key] {
+--   on_complete = { on_complete_item }
+-- }
+
+tester.builtin_picker('find_files', 'fixtures/file<c-p>', 'lua/tests/fixtures/file_2.txt', function()
+  return vim.fn.fnamemodify(vim.api.nvim_buf_get_name(0), ":.")
+end, {
+  debug = false,
+})
+