feat(selection-helper-web): fix texts and add description

Author: r0b1n

packages/pluggableWidgets/selection-helper-web/CHANGELOG.md

@@ -8,4 +8,4 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ### Added
 
--   We added Selection Helper widget.
+-   We added Selection helper widget.

packages/pluggableWidgets/selection-helper-web/README.md

@@ -1,3 +1,3 @@
-# Selection Helper
+# Selection helper
 
-Please see [Selection Helper](https://docs.mendix.com/appstore/modules/gallery#selection-helper-widget) in the Mendix documentation for details.
+Please see [Selection helper](https://docs.mendix.com/appstore/modules/gallery#selection-helper-widget) in the Mendix documentation for details.

packages/pluggableWidgets/selection-helper-web/src/SelectionHelper.tsx

@@ -10,7 +10,7 @@ export function SelectionHelper(props: SelectionHelperContainerProps): ReactElem
     if (contextValue.hasError) {
         return (
             <Alert bootstrapStyle="danger">
-                The Selection Helper widget must be placed inside the header of the Gallery widget with multi-selection.
+                The Selection helper widget must be placed inside the header of the Gallery widget with multi-selection.
             </Alert>
         );
     }

packages/pluggableWidgets/selection-helper-web/src/SelectionHelper.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <widget id="com.mendix.widget.web.selectionhelper.SelectionHelper" pluginWidget="true" needsEntityContext="true" offlineCapable="true" supportedPlatform="Web" xmlns="http://www.mendix.com/widget/1.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.mendix.com/widget/1.0/ ../node_modules/mendix/custom_widget.xsd">
-    <name>Selection Helper</name>
+    <name>Selection helper</name>
     <description />
     <studioProCategory>Data controls</studioProCategory>
     <studioCategory>Data Controls</studioCategory>
@@ -9,14 +9,14 @@
         <propertyGroup caption="General">
             <property key="renderStyle" type="enumeration" defaultValue="checkbox">
                 <caption>Style</caption>
-                <description />
+                <description>Custom enables placeholders for using widgets for the different states.</description>
                 <enumerationValues>
-                    <enumerationValue key="checkbox">Checkbox</enumerationValue>
+                    <enumerationValue key="checkbox">Check box</enumerationValue>
                     <enumerationValue key="custom">Custom</enumerationValue>
                 </enumerationValues>
             </property>
             <property key="checkboxCaption" type="textTemplate" required="false">
-                <caption>Checkbox caption</caption>
+                <caption>Check box caption</caption>
                 <description />
             </property>
             <property key="customAllSelected" type="widgets">