Add a flag to disable treesitter and hopefully rely on the old syntax…

… system #571

I'm unsure if setting syntax=on enables the old syntax highlighting in
this one buffer or not. Maybe it re-activates TS?

doc/conjure.txt

@@ -688,6 +688,11 @@ configure the ones you care about one at a time you can set:
             warnings you would normally see from your LSP setup if
             switched off.
             Default: `false`
+                                                    *g:conjure#log#treesitter*
+`g:conjure#log#treesitter`
+            Enables treesitter in the log buffer. You may want this off if you
+            notice large logs slowing down your editor.
+            Default: `true`
 
                                                   *g:conjure#log#break_length*
 `g:conjure#log#break_length`

fnl/conjure/config.fnl

@@ -94,6 +94,7 @@
    :log
    {:wrap false
     :diagnostics false
+    :treesitter true
     :hud {:width 0.42
           :height 0.3
           :zindex 1

fnl/conjure/log.fnl

@@ -43,6 +43,10 @@
   (when (and vim.diagnostic (= false (config.get-in [:log :diagnostics])))
     (vim.diagnostic.disable buf))
 
+  (when (and vim.treesitter (= false (config.get-in [:log :treesitter])))
+    (vim.treesitter.stop buf)
+    (nvim.buf_set_option buf :syntax "on"))
+
   (nvim.buf_set_lines
     buf 0 -1 false
     [(str.join [(client.get :comment-prefix)