chore: organize dotfiles stowed by home-manager

modules/dotfiles/nvim/after/ftplugin/rust.lua

@@ -0,0 +1,18 @@
+local bufnr = vim.api.nvim_get_current_buf()
+vim.keymap.set(
+  "n",
+  "<leader>a",
+  function()
+    vim.cmd.RustLsp('codeAction') -- supports rust-analyzer's grouping
+    -- or vim.lsp.buf.codeAction() if you don't want grouping.
+  end,
+  { silent = true, buffer = bufnr }
+)
+vim.keymap.set(
+  "n",
+  "K", -- Override Neovim's built-in hover keymap with rustaceanvim's hover actions
+  function()
+    vim.cmd.RustLsp({ 'hover', 'actions' })
+  end,
+  { silent = true, buffer = bufnr }
+)