feat: n'affiche pas le bouton «précédent» si on est revenu à la première question

site/source/components/conversation/QuestionEnCours.tsx

@@ -17,6 +17,7 @@ import { Button } from '@/design-system/buttons'
 import { Grid } from '@/design-system/layout'
 import { H3 } from '@/design-system/typography/heading'
 import { enregistreLaRéponse } from '@/store/actions/actions'
+import { estSurLaPremièreQuestionRépondueSelector } from '@/store/selectors/estSurLaPremièreQuestionRépondue.selector'
 import { situationSelector } from '@/store/selectors/simulationSelectors'
 import { evaluateQuestion } from '@/utils'
 
@@ -61,6 +62,10 @@ export function QuestionEnCours({
 		focusFirstElemInForm()
 	}, [focusFirstElemInForm, goToNext])
 
+	const estSurLaPremièreQuestion = useSelector(
+		estSurLaPremièreQuestionRépondueSelector
+	)
+
 	if (!currentQuestion) return null
 
 	const onChange = (
@@ -112,7 +117,7 @@ export function QuestionEnCours({
 					/>
 				</fieldset>
 				<Grid container spacing={2}>
-					{previousAnswers.length > 0 && (
+					{previousAnswers.length > 0 && !estSurLaPremièreQuestion && (
 						<Grid item xs={6} sm="auto">
 							<Button
 								color="primary"

site/source/store/selectors/estSurLaPremièreQuestionRépondue.selector.ts

@@ -0,0 +1,13 @@
+import { createSelector } from 'reselect'
+
+import { currentQuestionSelector } from '@/store/selectors/currentQuestion.selector'
+import { answeredQuestionsSelector } from '@/store/selectors/simulationSelectors'
+
+export const estSurLaPremièreQuestionRépondueSelector = createSelector(
+	[currentQuestionSelector, answeredQuestionsSelector],
+	(questionEnCours, questionsRépondues) =>
+		!!questionEnCours &&
+		!!questionsRépondues &&
+		!!questionsRépondues.length &&
+		questionsRépondues[0] === questionEnCours
+)