Fix comma style (#14)

* Update pubspec.yaml

* Update CHANGELOG.md

* Update math_field.dart

math_keyboard/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.1.0+1
+
+* Fixed styling of commas as decimal separators.
+
 ## 0.1.0
 
 * Initial public version.

math_keyboard/lib/src/widgets/math_field.dart

@@ -570,7 +570,11 @@ class _FieldPreview extends StatelessWidget {
           // that can simply be replaced by an alternate decimal separator
           // for the preview.
           '.',
-          decimalSeparator(context),
+          // We need to wrap the decimal separator in an extra group ("{}")
+          // because commas will otherwise be spaced as if they created a
+          // list, e.g. in vector notation (there is a padding to the right
+          // of the comma).
+          '{${decimalSeparator(context)}}',
         );
 
     return ConstrainedBox(

math_keyboard/pubspec.yaml

@@ -2,7 +2,7 @@ name: math_keyboard
 description: >-2
   Math expression editing using an on-screen software keyboard or physical keyboard input in a
   typeset input field in Flutter.
-version: 0.1.0
+version: 0.1.0+1
 homepage: https://github.com/simpleclub/math_keyboard/tree/main/math_keyboard
 
 environment: