Update rest-nvim configuration

- Remove use of `pcall` to simplify requiring the plugin.
- Replace usages of custom keybinding functions with `vim.keymap.set()`.

after/plugin/nvim-rest.lua

@@ -1,12 +0,0 @@
-local status_ok, rest_nvim = pcall(require, "rest-nvim")
-if not status_ok then
-  return
-end
-
-rest_nvim.setup()
-
-local nmap = require("opdavies.keymap").nmap
-
-nmap { "<leader>rr", "<plug>RestNvim<cr>" }
-nmap { "<leader>rp", "<plug>RestNvimPreview<cr>" }
-nmap { "<leader>rl", "<plug>RestNvimLast<cr>" }

after/plugin/rest-nvim.lua

@@ -0,0 +1,5 @@
+require("rest-nvim").setup()
+
+vim.keymap.set("n", "<leader>rr", "<plug>RestNvim<cr>")
+vim.keymap.set("n", "<leader>rp", "<plug>RestNvimPreview<cr>")
+vim.keymap.set("n", "<leader>rl", "<plug>RestNvimLast<cr>")