[canvas] Reduce page load bundle to under 100kB

[tylersmalley]

For details, refer to the meta issue at #95853

The canvas plugin is currently 528,634 bytes. To consider this issue closed, the limits.yml should be updated with the value under 100000.

This is an issue to track any bits of canvas that can help reduce main entry bundle size

• LoDash is 24% of the bundle. I think we load the full lodash, so we should probably switch to loading the individual functions we need and that would be a big quick win. I think this was handled by moving LoDash to a shared bundle
• Handlebars is 8%. I think we use handlebars when compiling our markdown? That can probably be pulled out of the main bundle and not loaded until Canvas is loaded. Handled by [Canvas] Move Handlebars and Flot dependencies out of main bundle #78542
• Flot is also about 8%. That should also be able to be pulled out of the main bundle. Handled by [Canvas] Move Handlebars and Flot dependencies out of main bundle #78542
• our i18n strings are 12.5% of the total bundle. Those get pulled into the main bundle because some of those strings are needed for adding functions to interpreter, which happens on setup and not when Canvas is actually loaded. Could strategically split those out maybe?
• node_modules is almost half of our bundle. Investigate what is pulling in all of those modules and figure out how to get them off the main entry.
• Canvas shareable runtime has doubled in size #128526

[elasticmachine]

Pinging @elastic/kibana-presentation (Team:Presentation)

[tylersmalley]

Canvas is now over half a megabyte. Any chance to get this work on the roadmap to reduce the initial page load of Canvas. This is loaded on ALL requests to Kibana and affects the overload page-load of the application.

[tylersmalley]

Currently 489,159kB

[thomasneirynck]

We should prioritize this, since all kibana users are affected according to #84793 (comment)

[thomasneirynck]

@ThomThomson seems like this is no longer the case (?)

[ThomThomson]

See this PR for more info. Unless something unexpected happens with that, it looks like the limit should actually have been 29355 and it was set much higher accidentally?

[ThomThomson]

Closing as the canvas page load bundle is 29kb