bs3-bs4-compat: Update variables to include lexicon-ux@1.x variables that were removed

[pat270]

Issue type (mark with x)

• 🐛 Bug report

Version (mark with x)

• 🔟 v10.x or higher

Description

Update bs3-bs4-compat variables to include lexicon-ux@1.x variables removed in Clay 2/3 and update docs.

Desired behavior:

Current behavior:

Repro instructions (if applicable):

Other information (environment, versions etc):