Results: CustomPlot: Add custom time axes.

src/View/Results/translate.py

@@ -27,6 +27,13 @@ class ResultsTranslate(PamhyrTranslate):
     def __init__(self):
         super(ResultsTranslate, self).__init__()
 
+        self._dict['day'] = _translate(
+            "Results", "day"
+        )
+        self._dict['days'] = _translate(
+            "Results", "days"
+        )
+
         self._sub_dict["table_headers_reach"] = {
             "name": _translate("Results", "Reach name"),
         }