fix(plugins/plugin-client-common): sidecar breadcrumb font too small

[starpit]

Fixes #4499

Description of what you did:

My PR is a:

• 💥 Breaking change
• 🐛 Bug fix
• 💅 Enhancement
• 🚀 New feature

Please confirm that your PR fulfills these requirements

• Multiple commits are squashed into one commit.
• The commit message follows Conventional Commits, which allows us to autogenerate release notes; e.g. fix(plugins/plugin-k8s): fixed annoying bugs
• All npm dependencies are pinned.

[codecov]

Codecov Report

Merging #4500 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #4500   +/-   ##
=======================================
  Coverage   59.04%   59.04%           
=======================================
  Files          75       75           
  Lines        2410     2410           
  Branches      582      582           
=======================================
  Hits         1423     1423           
  Misses        762      762           
  Partials      225      225           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 3f7a32f...5e40109. Read the comment docs.