fix(MessgaesList): update date separator overnight

Signed-off-by: DorraJaouad <[email protected]>

[skip ci]

src/components/MessagesList/MessagesList.vue

@@ -366,7 +366,7 @@ export default {
 					}
 
 					if (!this.dateSeparatorLabels[dateTimestamp]) {
-						this.dateSeparatorLabels[dateTimestamp] = this.generateDateSeparator(dateTimestamp)
+						this.$set(this.dateSeparatorLabels, dateTimestamp, this.generateDateSeparator(dateTimestamp))
 					}
 
 					if (!groupsByDate[dateTimestamp]) {
@@ -1230,6 +1230,10 @@ export default {
 			// setTimeout is needed here for Safari to correctly remove the unread marker
 			setTimeout(() => {
 				this.refreshReadMarkerPosition()
+				// Regenerate relative date separators
+				Object.keys(this.dateSeparatorLabels).forEach(dateTimestamp => {
+					this.$set(this.dateSeparatorLabels, dateTimestamp, this.generateDateSeparator(dateTimestamp))
+				})
 			}, 2)
 		},