Progress indicator: Design system website contextual example

[Spark450]

Acceptance Criteria:

• Add jump links:
  • Show progress when loading a page
  • Show progress when loading a table with lots of data
  • Show progress while uploading a file
• Add the following examples and code snippets (Figma design)
  • Show progress when loading a page (Clarify design intent with @twjeffery before implementation)
  • Show progress when loading a table with lots of data
  • Show progress while uploading a file