[REF] use common helper to set expected keys for tabs in Summary.tpl and TabHeader.tpl

[ufundo]

Overview

Consolidate and more tightly target the preprocessing of tabs arrays before they are passed to smarty templates.

Before

• TabHeader.tpl and Contact summary tabs in Summary.tpl handle the issue of ensuring the expected smarty vars are assigned slightly differently
• The TabHeader way is also called for every single page and form load regardless of whether there are any tabs on the page/form.

After

• a common helper function is used to set expected array keys
• the function is used at the point of assigning the tabs variable, rather than on every page/form load

Comments

This should help with avoiding any ENOTICEs caused by #31606

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[ufundo]

To note: I would really like to consolidate these two templates to use a single one. Slightly tricky because of some weird discrepancies with e.g. active and id - but hope this is a step in the right direction.

[colemanw]

Looks good, thanks @ufundo