Closes #5428 Allow prioritization of preloaded urls

[jeawhanlee]

Description

Increase priority of 3rd party SEO and sort pending jobs by id

Fixes #5428

Type of change

• [x] Enhancement (non-breaking change which improves an existing functionality)

How Has This Been Tested?

Manual

Checklist:

Please delete the options that are not relevant.

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] My changes generate no new warnings