[PT Run > Time and Date plugin] Custom formats and other improvements (#37743)

* add settings definition

* fix typos and improve settings

* make spell checker happy

* new icon type error

* first code to handle custom formats

* support parsing of new formats

* spelling and typos

* comment fix

* spell check

* start implement custom format results

* last changes

* finish implementation

* spell checker

* settings name

* add missing format

* reorder settings

* dev docs

* change ELF to EAB

* update dev docs

* last changes

* test cases

* fix typos

* fix typo

* port changes

* fixes

* changes

* fixes

* leap year support

* days in month

* tests

* comment

* fix comment

src/modules/launcher/Plugins/Microsoft.PowerToys.Run.Plugin.TimeDate/Components/ResultHelper.cs

@@ -83,10 +83,10 @@ namespace Microsoft.PowerToys.Run.Plugin.TimeDate.Components
         /// Gets a result with an error message that only numbers can't be parsed
         /// </summary>
         /// <returns>Element of type <see cref="Result"/>.</returns>
-        internal static Result CreateNumberErrorResult(string theme) => new Result()
+        internal static Result CreateNumberErrorResult(string theme, string title, string subtitle) => new Result()
         {
-            Title = Resources.Microsoft_plugin_timedate_ErrorResultTitle,
-            SubTitle = Resources.Microsoft_plugin_timedate_ErrorResultSubTitle,
+            Title = title,
+            SubTitle = subtitle,
             ToolTipData = new ToolTipData(Resources.Microsoft_plugin_timedate_ErrorResultTitle, Resources.Microsoft_plugin_timedate_ErrorResultSubTitle),
             IcoPath = $"Images\\Warning.{theme}.png",
         };