Fix jest tests for method='post' MR

app/soapbox/features/auth_login/components/__tests__/__snapshots__/login_form-test.js.snap

@@ -2,7 +2,8 @@
 
 exports[`<LoginForm /> renders correctly 1`] = `
 <form
-  className="simple_form new_user" method='post'
+  className="simple_form new_user"
+  method="post"
 >
   <fieldset>
     <div

app/soapbox/features/auth_login/components/__tests__/__snapshots__/login_page-test.js.snap

@@ -2,7 +2,8 @@
 
 exports[`<LoginPage /> renders correctly on load 1`] = `
 <form
-  className="simple_form new_user" method="post"
+  className="simple_form new_user"
+  method="post"
   onSubmit={[Function]}
 >
   <fieldset

app/soapbox/features/forms/__tests__/__snapshots__/forms-test.js.snap

@@ -77,7 +77,8 @@ exports[`<SelectDropdown /> renders correctly 1`] = `
 exports[`<SimpleForm /> renders correctly 1`] = `
 <form
   acceptCharset="UTF-8"
-  className="simple_form" method="post"
+  className="simple_form"
+  method="post"
   onSubmit={[Function]}
 />
 `;