long names don't make calendar color picker unclickable
long names don't make calendar color picker unclickable

fixes CNVS-20812

test plan
- on the calendar, have a context name that is one long word (>30
 characters)
- ensure that the custom color picker is still usable

Change-Id: I26e04954e6b138167e941f0d8f54d370e8ce72c5
Reviewed-on: https://gerrit.instructure.com/55472
Tested-by: Jenkins
Reviewed-by: Jonathan Featherstone <c99460343437e667b0585ea68fd7caf7bd0a02ab@instructure.com>
QA-Review: Heath Hales <8ca81b68c7e2592ac614bd07f22fcc735ca55f93@instructure.com>
Product-Review: Joel Hough <4816dabf8db1bc6cac35b3a24cab2ff844b5b0c7@instructure.com>

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