fix(plugin-kubectl): k get pods --all-namespaces has a title with "default" as the namespace

[myan9]

Fixes #4466

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.

[starpit]

lgtm

[codecov]

Codecov Report

Merging #4482 into master will increase coverage by 0.08%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #4482      +/-   ##
==========================================
+ Coverage   59.04%   59.12%   +0.08%     
==========================================
  Files          75       75              
  Lines        2410     2410              
  Branches      582      582              
==========================================
+ Hits         1423     1425       +2     
+ Misses        762      760       -2     
  Partials      225      225              

Impacted Files	Coverage Δ
packages/core/src/util/i18n.ts	64.00% <0.00%> (+8.00%)	⬆️

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