fix: default export for plugins

[alexander-akait]

This PR contains a:

• bugfix
• new feature
• code refactor
• test update
• typo fix
• metadata update

Motivation / Use-Case

default export for plugins

Breaking Changes

No

Additional Info

No

[codecov]

Codecov Report

Merging #465 into master will increase coverage by 0.07%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #465      +/-   ##
==========================================
+ Coverage   97.26%   97.33%   +0.07%     
==========================================
  Files           5        5              
  Lines         219      225       +6     
  Branches       61       63       +2     
==========================================
+ Hits          213      219       +6     
  Misses          6        6              

Impacted Files	Coverage Δ
src/utils.js	96.07% <100.00%> (+0.16%)	⬆️

---

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 38ebe08...7af382e. Read the comment docs.