Improve MR Analytics error messages

ee/app/assets/javascripts/analytics/merge_request_analytics/constants.js

@@ -11,12 +11,16 @@ export const THROUGHPUT_CHART_STRINGS = {
   X_AXIS_TITLE: __('Month'),
   CHART_DESCRIPTION: __('The number of merge requests merged by month.'),
   NO_DATA: __('There is no chart data available.'),
-  ERROR_FETCHING_DATA: __('There was an error while fetching the chart data.'),
+  ERROR_FETCHING_DATA: __(
+    'There was an error while fetching the chart data. Please refresh the page to try again.',
+  ),
 };
 
 export const THROUGHPUT_TABLE_STRINGS = {
   NO_DATA: __('There is no table data available.'),
-  ERROR_FETCHING_DATA: __('There was an error while fetching the table data.'),
+  ERROR_FETCHING_DATA: __(
+    'There was an error while fetching the table data. Please refresh the page to try again.',
+  ),
 };
 
 export const MERGE_REQUEST_ID_PREFIX = '!';

locale/gitlab.pot

@@ -24881,10 +24881,10 @@ msgstr ""
 msgid "There was an error when unsubscribing from this label."
 msgstr ""
 
-msgid "There was an error while fetching the chart data."
+msgid "There was an error while fetching the chart data. Please refresh the page to try again."
 msgstr ""
 
-msgid "There was an error while fetching the table data."
+msgid "There was an error while fetching the table data. Please refresh the page to try again."
 msgstr ""
 
 msgid "There was an error while fetching value stream analytics %{requestTypeName} data."