fix: use pcall to prevent live-filter regex errors (#1689)

* fix: use pcall to prevent live-filter regex errors

Wrap live filter's match function in pcall to prevent errors caused by
invalid regex while typing.

* nit: use ok for pcall rc

* nit: stylua fix

Co-authored-by: Alexander Courtis <alex@courtis.org>

Author: attrid

lua/nvim-tree/live-filter.lua

@@ -76,7 +76,8 @@ function M.apply_filter(node_)
     end
 
     local has_nodes = nodes and (M.always_show_folders or #nodes > filtered_nodes)
-    node.hidden = not (has_nodes or matches(node))
+    local ok, is_match = pcall(matches, node)
+    node.hidden = not (has_nodes or (ok and is_match))
   end
 
   iterate(node_ or TreeExplorer)