Ewoks show: truncate inputs that are too long

[poautran]

In GitLab by @woutdenolf on Nov 14, 2025, 02:10 GMT+1:

p70_squeeze_0001.json

table.txt

Migrated from GitLab: https://gitlab.esrf.fr/workflow/ewoks/ewoks/-/issues/52

[poautran]

In GitLab by @woutdenolf on Nov 14, 2025, 02:11 GMT+1:

mentioned in issue bliss/blissoda#178