feat: add the toppair/peek.nvim plugin

Add and configure the toppair/peek.nvim plugin for markdown previewing.

nvim/lua/plugins/config/peek.lua

@@ -0,0 +1,13 @@
+local ok, peek = pcall(require, "peek")
+
+if not ok then
+  return
+end
+
+peek.setup{
+  theme = "dark",
+  app   = "webview",
+}
+
+vim.api.nvim_create_user_command("PeekOpen", peek.open, {})
+vim.api.nvim_create_user_command("PeekClose", peek.close, {})

nvim/lua/plugins/init.lua

@@ -68,6 +68,15 @@ local plugins = {
       require("plugins.config.lint")
     end,
   },
+  {
+    -- Source: https://github.com/toppair/peek.nvim
+    "toppair/peek.nvim",
+    commit = "5820d937d5414baea5f586dc2a3d912a74636e5b",  -- 2024.04.09
+    build  = "deno task --quiet build:fast",
+    config = function()
+      require("plugins.config.peek")
+    end,
+  },
 }
 
 require("lazy").setup(plugins, {