Help/About: Use absolute URLs for inline images on About pages.

This ensures the images are loaded correctly from both single site and network About pages.

Follow-up to [61204].

Props umesh.nevase, sabernhardt, khokansardar, mukesh27, SergeyBiryukov.
Fixes #65352.

git-svn-id: https://develop.svn.wordpress.org/trunk@62423 602fd350-edb4-49c9-b593-d223f7449a82

Author: SergeyBiryukov

src/wp-admin/contribute.php

@@ -25,7 +25,7 @@
 
 	<div class="about__header">
 		<div class="about__header-image">
-			<img src="images/about-release-logo.svg?ver=7.0" alt="<?php echo esc_attr( $header_alt_text ); ?>" />
+			<img src="<?php echo esc_url( admin_url( 'images/about-release-logo.svg?ver=7.0.1' ) ); ?>" alt="<?php echo esc_attr( $header_alt_text ); ?>" />
 		</div>
 
 		<div class="about__header-title">

src/wp-admin/credits.php

@@ -28,7 +28,7 @@
 
 	<div class="about__header">
 		<div class="about__header-image">
-			<img src="images/about-release-logo.svg?ver=7.0" alt="<?php echo esc_attr( $header_alt_text ); ?>" />
+			<img src="<?php echo esc_url( admin_url( 'images/about-release-logo.svg?ver=7.0.1' ) ); ?>" alt="<?php echo esc_attr( $header_alt_text ); ?>" />
 		</div>
 
 		<div class="about__header-title">

src/wp-admin/freedoms.php

@@ -31,7 +31,7 @@
 
 	<div class="about__header">
 		<div class="about__header-image">
-			<img src="images/about-release-logo.svg?ver=7.0" alt="<?php echo esc_attr( $header_alt_text ); ?>" />
+			<img src="<?php echo esc_url( admin_url( 'images/about-release-logo.svg?ver=7.0.1' ) ); ?>" alt="<?php echo esc_attr( $header_alt_text ); ?>" />
 		</div>
 
 		<div class="about__header-title">

src/wp-admin/privacy.php

@@ -25,7 +25,7 @@
 
 	<div class="about__header">
 		<div class="about__header-image">
-			<img src="images/about-release-logo.svg?ver=7.0" alt="<?php echo esc_attr( $header_alt_text ); ?>" />
+			<img src="<?php echo esc_url( admin_url( 'images/about-release-logo.svg?ver=7.0.1' ) ); ?>" alt="<?php echo esc_attr( $header_alt_text ); ?>" />
 		</div>
 
 		<div class="about__header-title">