Truncate overly long event session descriptions

[michaelchadwick]

Fixes ilios/ilios#6656

After much work trying to get TruncateText's "character count" algo to work more like FadeText's "vertical space" algo, I gave up as I was essentially turning one component into the other for no reason.

In the end, just putting TruncateText on session descriptions when shown on the WaaG and/or Single Event routes feels like enough. If it's overly tall, it still won't truncate unless the character count is long enough, which feels like an edge cases most of the time.

This also squares up the presentation of session descriptions across WaaG, Single Event, Session, and editing Session, as they were not normalized (mainly in how they displayed lists).

Here's an example of various description "lengths" on the dashboard and how they'd now be handled.

The preview, logged in as dev, also currently has a course with a session and a wacky description to check all this again.

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❌ Visual Diff Report — FAILED

984 images compared: 8 different · 976 identical

Details

Differences (8)

File	Diff %	Notes
desktop-Acceptance _ Dashboard Week at a Glance _ shows all pre work _ .png	0.27%
desktop-Acceptance _ Dashboard Week at a Glance _ shows events _ .png	0.34%
laptop-Acceptance _ Dashboard Week at a Glance _ shows all pre work _ .png	0.25%
laptop-Acceptance _ Dashboard Week at a Glance _ shows events _ .png	0.34%
phone-Acceptance _ Dashboard Week at a Glance _ shows all pre work _ .png	0.58%
phone-Acceptance _ Dashboard Week at a Glance _ shows events _ .png	0.52%
tablet-Acceptance _ Dashboard Week at a Glance _ shows all pre work _ .png	0.38%
tablet-Acceptance _ Dashboard Week at a Glance _ shows events _ .png	0.45%

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[michaelchadwick]

NTS: Try combining TruncateText but with the FadeText vertical checking.

[dartajax]

[dartajax]

[dartajax]

I know it's on me to merge this PR but I'm not quite feeling it ... yet.

[dartajax]

from PR build ...

from Netlify ...