fix(warning): remove front dead code

[xtiannyeto]

• remove front unused var or import

[github-actions]

Coverage Report for frontend

Status	Category	Percentage	Covered / Total
🟢	Lines	78.92% (🎯 50%)	1914 / 2425
🟢	Statements	78.68% (🎯 50%)	1994 / 2534
🟢	Functions	75.18% (🎯 50%)	500 / 665
🟢	Branches	72.16% (🎯 50%)	840 / 1164

File Coverage

File	Stmts	% Branch	% Funcs	% Lines	Uncovered Lines
Changed Files
frontend/src/features/pam/mission/components/elements/mission-item.tsx	82.97%	83.33%	77.77%	82.6%	70, 73-74, 77, 92-97, 113, 126
frontend/src/features/pam/mission/components/elements/controls/control-security-form.tsx	95.65%	94.44%	100%	100%	50
frontend/src/features/pam/mission/components/elements/timeline/item/timeline-item-anti-pollution.tsx	33.33%	100%	0%	33.33%	9, 11-39
frontend/src/features/pam/mission/components/elements/timeline/item/timeline-item-baaem-permanence.tsx	33.33%	100%	0%	33.33%	9, 11-39
frontend/src/features/pam/mission/components/elements/timeline/item/timeline-item-container.tsx	76.74%	66.66%	100%	76.74%	97, 115, 117, 119, 121, 123, 125, 127, 129, 131
frontend/src/features/pam/mission/components/elements/timeline/item/timeline-item-illegal-immigration.tsx	33.33%	100%	0%	33.33%	9, 11-39
frontend/src/features/pam/mission/components/elements/timeline/item/timeline-item-nautical-event.tsx	33.33%	100%	0%	33.33%	9, 11-39
frontend/src/features/pam/mission/components/elements/timeline/item/timeline-item-public-order.tsx	33.33%	100%	0%	33.33%	9, 11-39
frontend/src/features/pam/mission/components/elements/timeline/item/timeline-item-representation.tsx	33.33%	100%	0%	33.33%	9, 11-39
frontend/src/features/pam/mission/components/elements/timeline/item/timeline-item-vigimer.tsx	33.33%	100%	0%	33.33%	9, 11-39
frontend/src/features/pam/mission/components/layout/page-footer.tsx	66.66%	50%	50%	66.66%	23-24
frontend/src/features/pam/mission/hooks/representation/use-add-representation.tsx	100%	100%	100%	100%
frontend/src/pages/mission-page.tsx	45.65%	41.66%	60%	46.66%	40-70, 41-69, 42, 44, 47-50, 48-49, 53, 56-58, 61-62, 65, 67-68, 74-75, 77-87, 78-87, 85-86

Generated in workflow #1133 for commit ea3188c by the Vitest Coverage Report Action