Update Default Layout config for Varbase Landing page (Layout Builder)

Problem/Motivation

#3160146: Add a Normalizer and Denormalizer to support Layout Builder
#3220899: Update the Normalizer and Denormalize patch for Layout Builder in the Default Content module
#3218194: Add Vertical and Horizontal alignments to section styling settings for Varbase Layout Builder ~10
#3210657: Add Boxed options ( Wide, Medium, Narrow, Tiny ) in Varbase Layout Builder ~10

Proposed resolution

Update the default layout config for VLPLB