Notification mails: Fix some alignment details and remove shadow

Signed-off-by: Jan-Christoph Borchardt <hey@jancborchardt.net>

lib/private/Mail/EMailTemplate.php

@@ -143,7 +143,7 @@ EOF;
 	<tbody>
 	<tr style="padding:0;text-align:left;vertical-align:top">
 		<td style="-moz-hyphens:auto;-webkit-hyphens:auto;Margin:0;border-collapse:collapse!important;color:#0a0a0a;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen-Sans,Ubuntu,Cantarell,'Helvetica Neue',Arial,sans-serif;font-size:16px;font-weight:400;hyphens:auto;line-height:1.3;margin:0;padding:0;text-align:left;vertical-align:top;word-wrap:break-word">
-			<h1 class="text-center" style="Margin:0;Margin-bottom:10px;color:inherit;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen-Sans,Ubuntu,Cantarell,'Helvetica Neue',Arial,sans-serif;font-size:24px;font-weight:400;line-height:1.3;margin:0;margin-bottom:10px;padding:0;text-align:center;word-wrap:normal">%s</h1>
+			<h1 class="text-center" style="Margin:0;Margin-bottom:10px;color:inherit;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen-Sans,Ubuntu,Cantarell,'Helvetica Neue',Arial,sans-serif;font-size:24px;font-weight:400;line-height:1.3;margin:0;padding:0;text-align:center;word-wrap:normal">%s</h1>
 		</td>
 	</tr>
 	</tbody>
@@ -151,7 +151,7 @@ EOF;
 <table class="spacer float-center" style="Margin:0 auto;border-collapse:collapse;border-spacing:0;float:none;margin:0 auto;padding:0;text-align:center;vertical-align:top;width:100%%">
 	<tbody>
 	<tr style="padding:0;text-align:left;vertical-align:top">
-		<td height="40px" style="-moz-hyphens:auto;-webkit-hyphens:auto;Margin:0;border-collapse:collapse!important;color:#0a0a0a;font-size:40px;font-weight:400;hyphens:auto;line-height:40px;margin:0;mso-line-height-rule:exactly;padding:0;text-align:left;vertical-align:top;word-wrap:break-word">&#xA0;</td>
+		<td height="36px" style="-moz-hyphens:auto;-webkit-hyphens:auto;Margin:0;border-collapse:collapse!important;color:#0a0a0a;font-size:40px;font-weight:400;hyphens:auto;line-height:36px;margin:0;mso-line-height-rule:exactly;padding:0;text-align:left;vertical-align:top;word-wrap:break-word">&#xA0;</td>
 	</tr>
 	</tbody>
 </table>
@@ -161,7 +161,7 @@ EOF;
 <table align="center" class="wrapper content float-center" style="Margin:0 auto;border-collapse:collapse;border-spacing:0;float:none;margin:0 auto;padding:0;text-align:center;vertical-align:top;width:100%">
 	<tr style="padding:0;text-align:left;vertical-align:top">
 		<td class="wrapper-inner" style="-moz-hyphens:auto;-webkit-hyphens:auto;Margin:0;border-collapse:collapse!important;color:#0a0a0a;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen-Sans,Ubuntu,Cantarell,'Helvetica Neue',Arial,sans-serif;font-size:16px;font-weight:400;hyphens:auto;line-height:1.3;margin:0;padding:0;text-align:left;vertical-align:top;word-wrap:break-word">
-			<table align="center" class="container has-shadow" style="Margin:0 auto;background:#fefefe;border-collapse:collapse;border-spacing:0;box-shadow:0 1px 2px 0 rgba(0,0,0,.2),0 1px 3px 0 rgba(0,0,0,.1);margin:0 auto;padding:0;text-align:inherit;vertical-align:top;width:580px">
+			<table align="center" class="container" style="Margin:0 auto;background:#fff;border-collapse:collapse;border-spacing:0;margin:0 auto;padding:0;text-align:inherit;vertical-align:top;width:580px">
 				<tbody>
 				<tr style="padding:0;text-align:left;vertical-align:top">
 					<td style="-moz-hyphens:auto;-webkit-hyphens:auto;Margin:0;border-collapse:collapse!important;color:#0a0a0a;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen-Sans,Ubuntu,Cantarell,'Helvetica Neue',Arial,sans-serif;font-size:16px;font-weight:400;hyphens:auto;line-height:1.3;margin:0;padding:0;text-align:left;vertical-align:top;word-wrap:break-word">
@@ -175,7 +175,7 @@ EOF;
 			<table style="border-collapse:collapse;border-spacing:0;padding:0;text-align:left;vertical-align:top;width:100%%">
 				<tr style="padding:0;text-align:left;vertical-align:top">
 					<th style="Margin:0;color:#0a0a0a;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen-Sans,Ubuntu,Cantarell,'Helvetica Neue',Arial,sans-serif;font-size:16px;font-weight:400;line-height:1.3;margin:0;padding:0;text-align:left">
-						<p class="text-left" style="Margin:0;Margin-bottom:10px;color:#777;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen-Sans,Ubuntu,Cantarell,'Helvetica Neue',Arial,sans-serif;font-size:16px;font-weight:400;line-height:1.3;margin:0;margin-bottom:10px;padding:0;text-align:left">%s</p>
+						<p style="Margin:0;Margin-bottom:10px;color:#777;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen-Sans,Ubuntu,Cantarell,'Helvetica Neue',Arial,sans-serif;font-size:16px;font-weight:400;line-height:1.3;margin:0;margin-bottom:10px;padding:0;text-align:center">%s</p>
 					</th>
 					<th class="expander" style="Margin:0;color:#0a0a0a;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen-Sans,Ubuntu,Cantarell,'Helvetica Neue',Arial,sans-serif;font-size:16px;font-weight:400;line-height:1.3;margin:0;padding:0!important;text-align:left;visibility:hidden;width:0"></th>
 				</tr>