[nvim] fix: tex env snippet

.config/nvim/after/ftplugin/tex.lua

@@ -81,8 +81,10 @@ ls.add_snippets("tex", {
     s("env", {
         t({ "\\begin{" }),
         i(1, "foo"),
-        t({ "}", "\t" }),
+        t({ "}"}),
         i(2),
+        t({ "", "\t" }),
+        i(3),
         t({ "", "\\end{" }),
         f(copy,1),
         t({ "}"}),