Performance improvements in OcTable

[pascalwengerter]

Description

Introduce v-once and cut unnecessary events and Vue.js component usage to complement owncloud/web#7056

I've removed some OcTable helper components in favor of native HTML table tags - this should reduce rerendering/observing/general UI overhead. It also removes the shimmer effect on table cell load (previews get fetched lazily anyways)

[update-docs]

Thanks for opening this pull request! The maintainers of this repository would appreciate it if you would create a changelog item based on your changes.

[kulmann]

Awesome 😍 please make sure to raise a breaking change via changelog item. ;-) Also, please check if we're using the OcTableSimple somewhere because those usages will need to be adapted to not use the table building blocks you deleted here but use native html tags instead.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
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No Coverage information
0.0% Duplication

[pascalwengerter]

Needs a re-visit since table-cell formatting is broken 🙄

[kulmann]

Superseded by #2260 as it turns out that the debounce in lazy loading (which was also removed in this PR) was a big performance issue.