[GS] Rework embedded SVG to render graphic

[karenzone]

Embedded SVG not supported and therefore not rendering properly. These will need to be embedded using the image syntax:

![text](path_to_svg)

Original page:

Currently rendered page in V3:

Source: https://github.com/elastic/docs-content/blob/main/get-started/stack-components.md

Check this out to see how it was resolved: https://refactored-funicular-qzy2pnj.pages.github.io/apm-getting-started-apm-server.html

[karenzone]

Info for future travelers... because WYKYK.

Convert embedded SVG content into a linkable file

1. Use text editor to create a new empty file called with .svg extention. Example: stack-components-diagram.svg
2. Go to the markdown file and copy the svg code (everything except the opening and closing div)
3. Paste that in the empty SVG file that you created.
4. Go back to the MD file and add the image syntax.

Thanks, @colleenmcginnis

[karenzone]

Fixed with #411