refactor(nvim): reinclude image.nvim

Reverst 6d163b9 'refactor(nvim): remove image.nvim'

dots/.config/nvim/lua/plugins/configs/image.lua

@@ -0,0 +1,22 @@
+return {
+    {
+        "3rd/image.nvim",
+        build = function()
+            ---@type vim.SystemCompleted
+            local out = vim.system({ "luarocks", "--lua-version", "5.1", "--local", "install", "magick" }):wait()
+            if out.code ~= 0 then
+                error(
+                string.format(
+                "Failed to install `magick` luarock for image.nvim!\n---STDOUT---\n%s\n\n---STDERR---\n\n%s", out.stdout,
+                    out.stderr), vim.log.levels.ERROR)
+            end
+        end,
+        ft = { "markdown", "norg" },
+        config = function()
+            package.path = package.path .. ";" .. vim.fn.expand("$HOME") .. "/.luarocks/share/lua/5.1/?/init.lua;"
+            package.path = package.path .. ";" .. vim.fn.expand("$HOME") .. "/.luarocks/share/lua/5.1/?.lua;"
+            require("image").setup({})
+            vim.cmd.edit()
+        end,
+    },
+}