fix email logo icon

templates/emails/activation.html

@@ -72,7 +72,7 @@ a, a:hover {
 			<!-- Image text color should be opposite to background color. Set your url, image src, alt and title. Alt text should fit the image size. Real image size should be x2.  -->
 			<a target="_blank" style="text-decoration: none;"
 				href="https://simplelogin.io"><img border="0" vspace="0" hspace="0"
-				src="https://static.simplelogin.io/icon.png"
+				src="https://static.simplelogin.io/transparent.png"
 				width="100" height="100"
 				alt="Logo" title="Logo" style="
 				color: #000000;

templates/emails/new-app.html

@@ -72,7 +72,7 @@ a, a:hover {
 			<!-- Image text color should be opposite to background color. Set your url, image src, alt and title. Alt text should fit the image size. Real image size should be x2.  -->
 			<a target="_blank" style="text-decoration: none;"
 				href="https://simplelogin.io"><img border="0" vspace="0" hspace="0"
-				src="https://static.simplelogin.io/icon.png"
+				src="https://static.simplelogin.io/transparent.png"
 				width="100" height="100"
 				alt="Logo" title="Logo" style="
 				color: #000000;

templates/emails/reset-password.html

@@ -72,7 +72,7 @@ a, a:hover {
 			<!-- Image text color should be opposite to background color. Set your url, image src, alt and title. Alt text should fit the image size. Real image size should be x2.  -->
 			<a target="_blank" style="text-decoration: none;"
 				href="https://simplelogin.io"><img border="0" vspace="0" hspace="0"
-				src="https://static.simplelogin.io/icon.png"
+				src="https://static.simplelogin.io/transparent.png"
 				width="100" height="100"
 				alt="Logo" title="Logo" style="
 				color: #000000;

templates/emails/test-email.html

@@ -72,7 +72,7 @@ a, a:hover {
 			<!-- Image text color should be opposite to background color. Set your url, image src, alt and title. Alt text should fit the image size. Real image size should be x2.  -->
 			<a target="_blank" style="text-decoration: none;"
 				href="https://simplelogin.io"><img border="0" vspace="0" hspace="0"
-				src="https://static.simplelogin.io/icon.png"
+				src="https://static.simplelogin.io/transparent.png"
 				width="100" height="100"
 				alt="Logo" title="Logo" style="
 				color: #000000;

templates/emails/welcome.html

@@ -72,7 +72,7 @@ a, a:hover {
 			<!-- Image text color should be opposite to background color. Set your url, image src, alt and title. Alt text should fit the image size. Real image size should be x2.  -->
 			<a target="_blank" style="text-decoration: none;"
 				href="https://simplelogin.io"><img border="0" vspace="0" hspace="0"
-				src="https://static.simplelogin.io/icon.png"
+				src="https://static.simplelogin.io/transparent.png"
 				width="100" height="100"
 				alt="Logo" title="Logo" style="
 				color: #000000;