feat(rum-explorer): isolate tsv computation

[kptdobe]

Before:

• https://www.aem.live/tools/rum/explorer.html?domain=www.adobe.com&filter=&view=year&checkpoint=click&domainkey=9A3B022A-4C58-4060-A76E-04DD0E70F1D0
• full ui updated in 388ms

After

• https://explorer-tsv--helix-website--adobe.aem.live/tools/rum/explorer.html?domain=www.adobe.com&filter=&view=year&checkpoint=click&domainkey=9A3B022A-4C58-4060-A76E-04DD0E70F1D0
• full ui updated in 378ms

While gain on rendering speed is minimum, we save a lot of memory not computing some large strings (only needed if someone hits the copy button).

There are certainly ways to not recompute everything, just reading the values... For now, it is ok as is.

[aem-code-sync[bot]]

Hello, I'm the AEM Code Sync Bot and I will run some actions to deploy your branch and validate page speed. In case there are problems, just click a checkbox below to rerun the respective action.

• [ ] Re-run PSI checks
• [ ] Re-sync branch

Commits

* [562f589](https://github.com/adobe/helix-website/commit/562f58964384d9d1b6590e7de9540a5fe09964bb) :white_check_mark: (latest)

[aem-code-sync[bot]]

Page	Scores	Audits	Google
/tools/rum/explorer.html?domain=www.adobe.com&filter=&view=year&checkpoint=click &domainkey=9A3B022A-4C58-4060-A76E-04DD0E70F1D0