Adding eui text center classes

Author: elizabetdev

src/legacy/core_plugins/kibana/public/management/sections/index_patterns/create_index_pattern_wizard/components/step_index_pattern/components/loading_indices/loading_indices.tsx

@@ -33,7 +33,7 @@ export const LoadingIndices = ({ ...rest }) => (
   >
     <EuiFlexItem grow={false}>
       <EuiTitle size="s">
-        <h3 style={{ textAlign: 'center' }}>
+        <h3 className="eui-textCenter">
           <FormattedMessage
             id="kbn.management.createIndexPattern.step.loadingHeader"
             defaultMessage="Looking for matching indices…"

src/legacy/core_plugins/kibana/public/management/sections/index_patterns/create_index_pattern_wizard/components/step_time_field/step_time_field.tsx

@@ -181,7 +181,7 @@ export class StepTimeField extends Component<StepTimeFieldProps, StepTimeFieldSt
         <EuiFlexGroup justifyContent="center" alignItems="center" direction="column" gutterSize="s">
           <EuiFlexItem grow={false}>
             <EuiTitle size="s">
-              <h3 style={{ textAlign: 'center' }}>
+              <h3 className="eui-textCenter">
                 <FormattedMessage
                   id="kbn.management.createIndexPattern.stepTime.creatingLabel"
                   defaultMessage="Creating index pattern…"