Show ammo_restriction info for non-MAGAZINE items

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Summary

SUMMARY: Bugfixes "Show ammo_restriction info for non-MAGAZINE items"

Purpose of change

Non-magazine items with non-magazine pockets (including quivers and ammo pouches), yet having an ammo_restriction defined, were not indicating their capacity in the item info panel.

Fixes #40521

Describe the solution

Allows non-MAGAZINE item contents/pockets to indicate their ammo_restriction-based capacity in the pocket section, labeled "Holds:"

Existing MAGAZINE-type containers (as well as GUN and TOOL items with MAGAZINE pockets) continue to indicate their magazine capacity info in the magazine section of the item info.

Change the quiver and ammo pouch item descriptions to say "Use insert to store" rather than "Activate to store".

In the inventory screen, show the quantity of arrows/bolts in a quiver.

Add a test case covering related item ammo_restriction info display, both for the main item info / description panel, and for the display_name of the quiver with arrows loaded in it.

Describe alternatives you've considered

Previous attempt #41122 changed quivers to be MAGAZINES; this attempt aims to make ammo_restriction work for non-MAGAZINES as well.

Testing

Ran new unit tests with tests/cata_test [ammo_restriction]

In-game, spawned a quiver and added some wooden bolts. Quiver ammo_restriction is indicated in the pocket section under "Total capacity:"

Ammo pouch now indicates its many ammo types:

In the inventory, quivers and ammo pouches will now indicate the total number of ammo items they contain. Prior to my changes, these did not show the (nn) counts. For example a large quiver with 51 of the same kind of arrow:

Large quiver with 57 of different kinds of arrow/bolt:

Ammo pouch with pebbles:

When the quiver has some arrows or bolts loaded into it, the total volume/weight of those items is displayed in the pocket section, but the total capacity (which is zero for ammo_restriction pockets) is not displayed. Thus, as a normal (non-ammo) container pockets, it would be formatted like this:

But since the zeros are misleading, they are now hidden for ammo_restriction pockets:

Quivers may contain multiple bolts and arrows, although there are some quirks with how the insert menu works - it may disallow explicitly loading multiple kinds into the quiver, though if you pick the arrows or bolts off the ground (or spawn them from the debug menu), they may go directly into a quiver that already contains other bolts or arrows:

Additional context

There are some inconsistencies and messaging problems with the insert menu, as noted above (and as described in the comments on #41122) but those are probably best addressed in a separate PR.

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I ran make astyle to fix some styling bugs in src/item_contents.cpp, though these came in from upstream (not me).

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CI failures appear to be caused by known problems in the comestible test (recipe kcals), not related to my changes.

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CI failure appears unrelated, and one I have seen pop up before:

mutation_test.cpp:122: FAILED:
  CHECK( breach_chance <= BREACH_CHANCE_MAX )
with expansion:
  0.53608f <= 0.4f
with message:
  MUTATIONS: MANA_REGEN2 MANA_MULT_MANATOUCHED ROT2 ALBINO WEAK
  MANA_ADD_MANATOUCHED MANA_LUM