fix: escape path on windows when opening file (#1023)

fixes #889

lua/neo-tree/utils.lua

@@ -566,7 +566,7 @@ M.open_file = function(state, path, open_cmd, bufnr)
   end
 
   if M.truthy(path) then
-    local escaped_path = vim.fn.fnameescape(path)
+    local escaped_path = M.escape_path(path)
     local bufnr_or_path = bufnr or escaped_path
     local events = require("neo-tree.events")
     local result = true
@@ -897,6 +897,14 @@ M.windowize_path = function(path)
   return path:gsub("/", "\\")
 end
 
+M.escape_path = function(path)
+  local escaped_path = vim.fn.fnameescape(path)
+  if M.is_windows then
+    escaped_path = escaped_path:gsub("\\", "/")
+  end
+  return escaped_path
+end
+
 M.wrap = function(func, ...)
   if type(func) ~= "function" then
     error("Expected function, got " .. type(func))