Merge pull request #1788 from Expensify/jasper-2faNumericKeyboard

Make the 2FA keyboard numeric on mobile.

src/pages/signin/PasswordForm.js

@@ -88,6 +88,7 @@ class PasswordForm extends React.Component {
                             placeholderTextColor={themeColors.textSupporting}
                             onChangeText={text => this.setState({twoFactorAuthCode: text})}
                             onSubmitEditing={this.validateAndSubmitForm}
+                            keyboardType="numeric"
                         />
                     </View>
                 )}