raidboss: normalize timelines in preparation for conversion

[quisquous]

• Various sync fixes where it is clearly broken.
• Various sync massaging to look like other syncs.
• Break apart any (source1:id1|source2:id2) into (source1|source2):(id1:id2)
• Adjust LakshmiEx timeline to avoid sync /.*/ by adding filler.

[quisquous]

These are all manual changes, so need a careful eye. @JLGarber do you have any time to do a review of this and double check my work?

This is all to make #5977 work more easily.