Fix typos and update labels for Northern Ireland and XI in CreateCountryRegion codeunit (#29666)

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#### Summary <!-- Provide a general summary of your changes -->
This pull request updates the demo data setup for country and region
creation, specifically correcting the label and token for Northern
Ireland. The changes ensure proper naming and coding conventions for
country/region identifiers and labels.

**Corrections for Northern Ireland:**

* Renamed the label from `NothernIrelandLbl` to `NorthernIrelandLbl` to
fix a spelling error.
* Replaced the country token from `GBNTok` (GBN) to `XITok` (XI) for
Northern Ireland, aligning with standard country/region codes.
* Updated the country/region insertion logic to use the corrected label
and token for Northern Ireland.
#### Work Item(s) <!-- Add the issue number here after the #. The issue
needs to be open and approved. Submitting PRs with no linked issues or
unapproved issues is highly discouraged. -->
Fixes #29496


Fixes
[AB#621128](https://dynamicssmb2.visualstudio.com/1fcb79e7-ab07-432a-a3c6-6cf5a88ba4a5/_workitems/edit/621128)

Author: SchulzOli

Apps/W1/ContosoCoffeeDemoDataset/app/DemoData/Foundation/1.Setup data/CreateCountryRegion.Codeunit.al

@@ -60,7 +60,7 @@ codeunit 5205 "Create Country/Region"
         ContosoCountryOrRegion.InsertCountryOrRegion(MY(), MalaysiaLbl, '458', '', '', Enum::"Country/Region Address Format"::"Post Code+City", 1, '', '');
         ContosoCountryOrRegion.InsertCountryOrRegion(MZ(), MozambiqueLbl, '508', '', '', Enum::"Country/Region Address Format"::"Post Code+City", 1, '', '');
         ContosoCountryOrRegion.InsertCountryOrRegion(NG(), NigeriaLbl, '566', '', '', Enum::"Country/Region Address Format"::"City+Post Code", 1, '', '');
-        ContosoCountryOrRegion.InsertCountryOrRegion(NI(), NothernIrelandLbl, CopyStr(GB(), 1, 2), '826', GBNTok, GBNTok, Enum::"Country/Region Address Format"::"City+County+Post Code", 1, '9932', '');
+        ContosoCountryOrRegion.InsertCountryOrRegion(NI(), NorthernIrelandLbl, CopyStr(GB(), 1, 2), '826', XITok, XITok, Enum::"Country/Region Address Format"::"City+County+Post Code", 1, '9932', '');
         ContosoCountryOrRegion.InsertCountryOrRegion(NL(), NetherlandsLbl, '528', NLTok, NLTok, Enum::"Country/Region Address Format"::"Post Code+City", 1, '9944', '');
         ContosoCountryOrRegion.InsertCountryOrRegion(NO(), NorwayLbl, '578', '', '', Enum::"Country/Region Address Format"::"Post Code+City", 1, '0192', '');
         ContosoCountryOrRegion.InsertCountryOrRegion(NZ(), NewZealandLbl, '554', '', '', Enum::"Country/Region Address Format"::"City+Post Code", 1, '', '');
@@ -497,7 +497,7 @@ codeunit 5205 "Create Country/Region"
         VUTok: Label 'VU', MaxLength = 10, Locked = true;
         WSTok: Label 'WS', MaxLength = 10, Locked = true;
         ZATok: Label 'ZA', MaxLength = 10, Locked = true;
-        GBNTok: Label 'GBN', MaxLength = 10, Locked = true;
+        XITok: Label 'XI', MaxLength = 10, Locked = true;
         UnitedArabEmiratesLbl: Label 'United Arab Emirates', MaxLength = 50;
         AustriaLbl: Label 'Austria', MaxLength = 50;
         AustraliaLbl: Label 'Australia', MaxLength = 50;
@@ -540,7 +540,7 @@ codeunit 5205 "Create Country/Region"
         MalaysiaLbl: Label 'Malaysia', MaxLength = 50;
         MozambiqueLbl: Label 'Mozambique', MaxLength = 50;
         NigeriaLbl: Label 'Nigeria', MaxLength = 50;
-        NothernIrelandLbl: Label 'Nothern Ireland', MaxLength = 50;
+        NorthernIrelandLbl: Label 'Northern Ireland', MaxLength = 50;
         NetherlandsLbl: Label 'Netherlands', MaxLength = 50;
         NorwayLbl: Label 'Norway', MaxLength = 50;
         NewZealandLbl: Label 'New Zealand', MaxLength = 50;