Bug/nodejs18 dockerfile

[exowanderer]

• Please check if the PR fulfills these requirements

• The commit message follows our guidelines
• Tests for the changes have been added (for bug fixes/features)
• Docs have been added / updated (for bug fixes / features)
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)
  This upgrades the UI system in the stablelm2_w_jin branch.
  Because testing was completed for the stablelm2_w_jina branch on Ubunt 20.04, the UI with node20 would not compile. As such development of the stablelm2_w_jina branch halted UI integration with embedding integration.
  Now that the underlying bug has been detected (See Dockerfile with nodejs18 for Ubuntu 20.04 #19: Ubuntu20 with Linux Kernel v5 does not support nodejs20) we can move the upgrade UI back into the stablelm2_w_jina branch for full scale testing with embedding, wikitext, and ChatGSWiki UI

• What is the current behavior? (You can also link to an open issue here)
  Default, basic UI with minimal JS for search and html for text

• What is the new behavior (if this is a feature change)?
  Professional UI with Vue3 that represents the full power of the WMDE SWE development team

• Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?)
  This is structural different for the Dockerfile (forcing node18) and a complete overhaul of the UI system