Added units of measure to throttle speeds

[lnxd]

Description

I had this issue in the past which led me to find (and answer) the linked discussion page.

But I had the issue again today, so decided to implement a fix.

I considered adding translations for:

settings.bandwidth.transferrate.global.throttle.download
settings.bandwidth.transferrate.global.throttle.upload

For every language as some have their own preferred units of measure, but B/s seems fairly universal.

There was precedent for this change in client/src/javascript/components/modals/settings-modal/ResourcesTab.tsx

Related Issue

#546

Screenshots

Before:

After:

Types of changes

• Breaking change (changes that break backward compatibility of public API or CLI - semver MAJOR)
• New feature (non-breaking change which adds functionality - semver MINOR)
• Bug fix (non-breaking change which fixes an issue - semver PATCH)

[trim21]

thanks