gh-144473: Add "steal" term to glossary; clarify "stealing" on error

[encukou]

• Issue: Docs: Clarify/unify “stealing” docs #144473

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📚 Documentation preview 📚: https://cpython-previews--144502.org.readthedocs.build/

[encukou]

@ZeroIntensity

I'm not a huge fan of putting "steal(s)" in quotations. If the user is confused about the term, then they can just click it to go to the glossary. Otherwise, the user knows the term, so it shouldn't be in scare quotes.

Noted.
Are you aware of the discussion about this in capi-workgroup/problems#11?

[ZeroIntensity]

I wasn't aware of that discussion. Thanks for the tip.

I'm still not convinced that putting quotation marks around it is the right approach; these are scare quotes, which are used for ideas that are disputed or skeptical, so I think it's a bit of a contradiction to put scare quotes around "steal" when we seem to have coined the term. It makes us seem like we don't trust the term or are taking it from somewhere else, which isn't true, unless I'm missing some history here.