Update vimtex plugin to add command for rendering.

config/nvim/lua/plugins/vimtext.lua

@@ -1,9 +1,12 @@
 return {
   'lervag/vimtex',
-  lazy = false, -- we don't want to lazy load VimTeX
-  -- tag = "v2.15", -- uncomment to pin to a specific release
+  lazy = false,
+  ft = { 'tex', 'latex', 'bib' },
   init = function()
-    -- VimTeX configuration goes here, e.g.
     vim.g.vimtex_view_method = 'zathura'
+    vim.g.vimtex_compiler_method = 'latexmk'
   end,
+  keys = {
+    { '<leader>r', '<cmd>VimtexCompile<cr>', desc = 'Compile LaTeX and view PDF', ft = 'tex' },
+  },
 }