Fix small grammar error in translation

Author: Lotendan

name.abuchen.portfolio.ui/src/name/abuchen/portfolio/ui/messages_fr.properties

@@ -340,7 +340,7 @@ ColumnDataSeries = S\u00E9rie de donn\u00E9es
 
 ColumnDate = Date
 
-ColumnDateFirstHistoricalQuote = Premier historique (Date)
+ColumnDateFirstHistoricalQuote = Premi\u00E8re cotation historique (Date)
 
 ColumnDateFirstHistoricalQuote_MenuLabel = Date de premi\u00E8re cotation historique
 
@@ -526,7 +526,7 @@ ColumnLatestDate = Derni\u00E8re (Date)
 
 ColumnLatestDate_MenuLabel = Date de derni\u00E8re cotation
 
-ColumnLatestHistoricalDate = Derni\u00E8re historique (Date)
+ColumnLatestHistoricalDate = Derni\u00E8re cotation historique (Date)
 
 ColumnLatestHistoricalDate_MenuLabel = Date de derni\u00E8re cotation historique