Follow-up from "Convert homepage widgets to 4-card tile layout"

The following discussions from !202520 (merged) should be addressed:

• @kpalchyk started a discussion:

  question (non-blocking, might need follow-up): should we be able to use formatNumber from ~/locale to do the same? I'd defer to it to read and check locale.

  We can do that in a follow-up.

• @kpalchyk started a discussion:

  suggestion (non-blocking, might need follow-up): since we have two places where we do this, let's define this in a common .js utility file, just local to the module. I.e. ~/homepage/utils.js or something like that.

  Though this could look even better as component:

  <number-format :value="count" />

  I'm leaning to make it local to ~/homepage/ , unless we establish a common rule for whole GitLab. Then we can seek how we could make it public.

• @kpalchyk started a discussion:

  suggestion (non-blocking, might need follow-up): is there a way to make these card's HTML reusable? I'd really like not to repeat all the css classes. They seem to be very similar in presentation. Just a value, icon, and foot notes.

• @kpalchyk started a discussion:

  suggestion (for follow-up): let's get Technical Writing input on the aria-labels. Maybe we'd really need a full thing with sprintf as in !202520 (comment 2713887884)

  (I'll include this in a follow-up issue)

• @kpalchyk started a discussion

decide on a common approach on big number shortening for MRs, and maybe create a dedicated note about this in our Pajamas. See !202520 (comment 2719502152) for details