Wizard: Update periods at the end of lines

Removing/adding some periods for the sake of consistency.

I believe the description of the step should end with a period, helped texts and options should not (at least that's the prevailing pattern in the Wizard as of now).

src/Components/CreateImageWizard/steps/FileSystem/index.tsx

@@ -22,7 +22,7 @@ const FileSystemStep = () => {
       <Title headingLevel="h1" size="xl">
         File system configuration
       </Title>
-      <Text>Define the partitioning of the image</Text>
+      <Text>Define the partitioning of the image.</Text>
       {hasIsoTargetOnly ? (
         <FileSystemAutomaticPartition />
       ) : fileSystemConfigurationType === 'automatic' ? (