nvim: init.vim: Update gutentags ctags extra args

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>

nvim/init.vim

@@ -315,8 +315,10 @@ let g:gutentags_generate_on_write = 1
 let g:gutentags_generate_on_empty_buffer = 0
 
 let g:gutentags_ctags_extra_args = [
-      \ '--tag-relative=yes',
+      \ '--tag-relative=no',
       \ '--fields=+ailmnS',
+      \ '--recurse',
+      \ '--if0=yes'
       \ ]
 
 " Automatically detect style file and apply style to formatting