Resolve todonotes issues

[yurrriq]

For example: 5b014ec246f752df4a5297b4609ae9bfa6ab8f70 removes some innocent-looking...

\todo[inline]{...}

... calls that broke the PDF build on my system.

• CTAN: Package todonotes

• [ ] Document the workaround

[yurrriq]

Looks like maybe the approach is to set an appropriate caption and use a minipage.