refactor(neovim): Convert file-autocmd to after-ftplugin

- Markdown, gitcommit, text: `lua/shared/text_settings.lua`
- Javascript, Typescript, React, Vue:
  `lua/shared/javascript_settings.lua`
- `after/ftplugin` files that `require` the above 2 shared configs

common/.config/nvim/lua/shared/text_settings.lua

@@ -0,0 +1,19 @@
+local M = {}
+
+function M.setup()
+    vim.opt_local.spell = true
+
+    vim.keymap.set("v", "<leader>ml", function()
+        vim.cmd('normal! "vygvc ') -- Save selected text to register 'v' & delete the text
+
+        -- Copy the system clipboard
+        local clipboard_content = vim.fn.getreg("+")
+        -- Insert the markdown link
+        local link = string.format("[%s](%s)", vim.fn.getreg("v"), clipboard_content)
+
+        vim.api.nvim_put({ link }, "c", false, true)
+        vim.cmd("normal! T[vt]") -- Move cursor inside the square brackets & visually select text
+    end, { desc = "Markdown: Create link from system clipboard" })
+end
+
+return M