Paginator that uses all available screen/window width

remove a no-op regex munging on callstacks

Port of a fix "upstream": commit b38f172ceb in template-live-editor.

Created by  akkartik  on November 10, 2023
6JKFAHNLTPQBVMHTKSOVOA25MAHXXI6GVWVGOUF75EHK23GXOIKAC
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