fix(frontend): update Env actions and show when several themes

[lwih]

Trou dans la raquettes quand il n'y avait plusieurs themes pour une surveillance ou controle Env.
Clémence m'a passé des nouveaux designs: https://xd.adobe.com/view/e3e667d9-4092-4bd1-ad92-69aaf2c8b3b8-b6b5/

J'ai dû changer les types côté API car la solution précédente n'était pas satisfaisante pour grouper les themes et leur subthemes associés.

[github-actions]

Coverage Report for frontend

Status	Category	Percentage	Covered / Total
🟢	Lines	77.84% (🎯 50%)	1813 / 2329
🟢	Statements	77.72% (🎯 50%)	1881 / 2420
🟢	Functions	75.2% (🎯 50%)	470 / 625
🟢	Branches	69.13% (🎯 50%)	766 / 1108

File Coverage

File	Stmts	% Branch	% Funcs	% Lines	Uncovered Lines
Changed Files
frontend/src/features/common/components/elements/env-action-control-plans.tsx	100%	100%	100%	100%
frontend/src/features/common/types/env-mission-types.ts	100%	100%	100%	100%
frontend/src/features/pam/mission/components/elements/actions/action-control-env.tsx	91.66%	85%	100%	91.66%	200
frontend/src/features/pam/mission/components/elements/actions/action-surveillance-env.tsx	91.66%	87.5%	100%	91.66%	83
frontend/src/features/pam/mission/components/elements/timeline/item/timeline-item-control-env.tsx	100%	100%	100%	100%
frontend/src/features/pam/mission/components/elements/timeline/item/timeline-item-surveillance.tsx	100%	100%	100%	100%
frontend/src/features/pam/mission/hooks/use-action-by-id.tsx	33.33%	0%	0%	33.33%	375-378, 380-382, 381, 384
frontend/src/features/pam/mission/hooks/use-mission-by-id.tsx	50%	100%	0%	50%	292-294, 296
frontend/src/features/pam/mission/hooks/use-mission-timeline.tsx	83.33%	50%	100%	83.33%	125

Generated in workflow #1003