Trim email address in checkout page login form

Author: dankhrapiyush

app/code/Magento/Checkout/view/frontend/web/template/form/element/email.html

@@ -22,7 +22,8 @@
                        type="email"
                        data-bind="
                             textInput: email,
-                            hasFocus: emailFocused"
+                            hasFocus: emailFocused,
+                            mageInit: {'mage/trim-input':{}}"
                        name="username"
                        data-validate="{required:true, 'validate-email':true}"
                        id="customer-email" />