Update KDS theme upgrades

[marcellamaki]

Overview

We've recently updated KDS to account for some theme token incompatibilities when theming our custom installers. We want to upgrade this in 0.17.x and replace any of the now-outdated tokens in Kolibri. This will allow us to upgrade any of our installers with custom theme colors without issue moving forward.

Get familiar with the context by reading:

https://learningequality.slack.com/archives/C0LKG14NL/p1721142804904449

learningequality/kolibri-design-system#775

learningequality/kolibri-design-system#782

https://learningequality.slack.com/archives/C0LE9NLCE/p1727812826832089

https://www.notion.so/learningequality/2024-09-17-KDS-Tactical-104f45d6ef9680be8cfada205c91efea?pvs=4#b80634a3dc4c4ad6b6077e4ba0bf9c8e

Acceptance criteria

• KDS is upgrade to v4.6.0. There should not be other breaking changes that need to be updated/addressed in Kolibri as part of this dependency upgrade, but please read the release notes
• any places that use the theme token numerical values in kolibri (so, anything that aligns with the updates spec in Update KDS Theme Token values kolibri-design-system#775) should be updated to use the correct value. So, themeTokens.primary does not need to be updated anywhere. But, if there is a place where themeTokens.v_1000 is used, that needs to be updated to themeTokens.v_500. Note: I have not proactively evaluated how many places will need to be updated. It may be a handful, it may be a lot!
• No regressions in the UI in terms of colors, or console errors. Please tag the QA team for review.
• Once all of the code updates are made, message Marcella for help QAing with a custom theme kolibri plugin.

[marcellamaki]

Addressed in #12742 and #12754