Fix Dark Mode Colors (#1099)

- fix dark mode colors

front/src/modules/activities/components/TaskRow.tsx

@@ -35,6 +35,7 @@ const StyledTaskBody = styled.div`
 `;
 
 const StyledTaskTitle = styled.div`
+  color: ${({ theme }) => theme.font.color.primary};
   font-weight: ${({ theme }) => theme.font.weight.medium};
   padding: 0 ${({ theme }) => theme.spacing(2)};
 `;

front/src/modules/activities/timeline/components/TimelineActivityCardFooter.tsx

@@ -13,6 +13,7 @@ type OwnProps = {
 const StyledContainer = styled.div`
   align-items: center;
   border-top: 1px solid ${({ theme }) => theme.border.color.medium};
+  color: ${({ theme }) => theme.font.color.primary};
   display: flex;
   flex-direction: row;
   gap: ${({ theme }) => theme.spacing(2)};