(Migration parity) Text that is highlighted on legacy is not highlighted on tokamak

[cjlim1092]

Describe the bug
Text that is highlighted on legacy is not highlighted on tokamak. This happens 10+ times in this course.

SVN
Echo
Legacy

Tokamak

Environment (please complete the following information):

• Version: 26

Additional context
High Priority course for India project

[andersweinstein]

This is regular text, not MathML. Legacy highlight style migrates into boldface. It appears Torus does not currently have highlight styling of text. So either that would have to be added to torus, or some workaround employed. Possible workarounds include using an image. Might also be possible as mathML equation with styling around the highlighted bits. Likely style="background-color: yellow" in same manner used for red expressions would work.

[cjlim1092]

the name of the mark is mark

[github-actions]

https://eliterate.atlassian.net/browse/MER-2737