fix(svelte): make ref and chart props optional

[nstuyvesant]

Updates

• Svelte charts were giving TypeScript warnings if the user didn't provide the ref or chart property (when they weren't needed). Added defaults for those properties in BaseChart.svelte which aligns better to 1.8.0.
• Based on what we found yesterday with React, adjusted the destroy method of BaseChart.svelte (reset chart prop to null after destroying components but not the holder)
• Added CSS class 'cds--chart-holder' to the chart holder to align Svelte behavior with core rendering.
• Fixed issue where toolbar on Svelte charts was displaying vertically initially until resized
• Added randomly generated HTML id to chart in case users need one (was in 1.8.0)
• Republished essential types like ChartTabularData and options for each chart type so users won't need @carbon/charts dependency. Ditto for most commonly-used enums.
• Updated vite-plugin-dts (just an update to the docs I contributed)
• Vite bug fix (postcss related)
• Updated @carbon/styles with sass marked as an optional peerDependency. Should allow us to drop sass from StackBlitz speeding up the loading (will test after next publish).
• Bumped Angular to 16.1.4 (components work better with older @angular/router)

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[theiliad]

LGTM