docs: Update UI text

Created by: serenashe

What type of PR is this?

/kind documentation

What this PR does / why we need it:

Update UI text of the Toolbox section.

Which issue(s) this PR fixes:

Fixes ## https://github.com/kubesphere/kubesphere/issues/4076

Special notes for reviewers:

The following files involve changes in the source code logic. Please take a look, thanks :)

src/components/KubeTools/index.jsx
src/components/Modals/Bill/Details/Cluster/index.jsx
src/components/Modals/Bill/components/LineChart/index.jsx
src/components/Modals/Bill/components/MeterDetailCard/index.jsx
src/components/Modals/Bill/components/ResourceSelect/index.jsx
src/components/Modals/Bill/components/SideCard/item.jsx
src/components/Modals/Bill/components/Tables/index.jsx
src/stores/meter/cluster.js

For more information on release notes see: https://github.com/kubernetes/community/blob/master/contributors/guide/release-notes.md -->

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