fix #632: [FR] Improve support of 'apocope' template

[lasconic]

• Fixes [FR] Improve support of 'apocope' template #632
• Tests added/updated.
• ./check.sh run and eventual issues fixed.
• Updated CONTRIBUTORS.md, if not already done in the past.

[sourcery-ai]

Sourcery Code Quality Report

✅  Merging this PR will increase code quality in the affected files by 0.01%.

Quality metrics	Before	After	Change
Complexity	16.17 🙂	16.17 🙂	0.00
Method Length	113.03 🙂	112.97 🙂	-0.06 👍
Working memory	28.86 ⛔	28.87 ⛔	0.01 👎
Quality	52.83% 🙂	52.84% 🙂	0.01% 👍

Other metrics	Before	After	Change
Lines	1445	1447	2

Changed files	Quality Before	Quality After	Quality Change
wikidict/lang/fr/init.py	32.55% 😞	32.55% 😞	0.00%
wikidict/lang/fr/template_handlers.py	56.61% 🙂	56.62% 🙂	0.01% 👍

Here are some functions in these files that still need a tune-up:

File	Function	Complexity	Length	Working Memory	Quality	Recommendation
wikidict/lang/fr/template_handlers.py	render_compose_de	53 ⛔	492 ⛔	15 😞	11.72% ⛔	Refactor to reduce nesting. Try splitting into smaller methods. Extract out complex expressions
wikidict/lang/fr/init.py	last_template_handler	22 😞	210 ⛔	18 ⛔	27.55% 😞	Refactor to reduce nesting. Try splitting into smaller methods. Extract out complex expressions
wikidict/lang/fr/template_handlers.py	render_etyl	17 🙂	161 😞	10 😞	46.13% 😞	Try splitting into smaller methods. Extract out complex expressions
wikidict/lang/fr/template_handlers.py	render_mot_valise	13 🙂	126 😞	10 😞	53.27% 🙂	Try splitting into smaller methods. Extract out complex expressions
wikidict/lang/fr/template_handlers.py	render_cit_ref	10 🙂	169 😞	8 🙂	55.58% 🙂	Try splitting into smaller methods

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• ⛔ very poor

The 👍 and 👎 indicate whether the quality has improved or gotten worse with this pull request.

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