moved tex mapping to ftplugin and added surround for tex

ftplugin/tex.lua

@@ -0,0 +1,21 @@
+-- Keybinding to compile LaTeX to PDF using xelatex with latexmk and output to the "output" directory
+vim.keymap.set('n', '<leader>ll', ':!mkdir -p output && latexmk -pdf -xelatex -output-directory=output -synctex=1 %<CR>',
+  {
+    desc = 'Compile LaTeX to PDF using xelatex with SyncTeX in the output directory',
+    noremap = true,
+    silent = true
+  })
+
+-- Keybinding to view the compiled PDF in Zathura from the output directory
+vim.keymap.set('n', '<leader>lv', function()
+  local pdf_path = vim.fn.expand('%:p:h') .. '/output/' .. vim.fn.expand('%:t:r') .. '.pdf'
+  vim.cmd(':silent !nohup zathura ' .. pdf_path .. ' >/dev/null 2>&1 &')
+end, {
+  desc = 'View PDF in Zathura from the output directory',
+  noremap = true,
+  silent = true
+})
+
+-- Custom surroundings for LaTeX
+vim.g.surround_110 = "\\begin{\r}\n\\end{\r}" -- map `yssn` for \begin{} \end{}
+