Update all component packages to latest brand-context version

[sturobson]

What

Update the version of brandContext for each component in the front-end toolkits.

Why

Before some larger architectural changes to what is Elements we need to make sure all of the current components that are in the front-end toolkits make use of the latest version of the brand context. This will move us towards the single release and allow us to point the front-end toolkits repo on 'maintenance mode'.

Done When

• update the "brandContext": "^s.s.s" in the package.json for each component in each brand toolkit
• create a new demo file for each existing component that has a demo folder.
• test the new demo file against the existing version using this tool
• update the package.json for the component to a major breaking change (X.x.x)
• update the history.md to reflect that we have updated the brandContext in the package.json

[sturobson]

note: there is a fresh update to the themes (brand context) (#856) that you might want to wait for - or do a find and replace when it's merged.

I don't think there are any actual values that would impact components specifically (there will be from the Cascade of CSS coming from the brand context itself). It should not break anything.

[amyhupe]

As #856 is now blocked, this can be picked up again.

[amyhupe]

@amyhupe put some time in to plan comms around this with:

• Alex K
• Fred
• Sabrina
• Heydon
• Stu