Update whats new pages and change log

Updated whats new pages with two new pages and two images. Changed the images for the monotonic ordering
Updated the change log with new bug fixes.

resources/texts/change_log.txt

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 [4.11.0]
+<i>For an overview of the new features in Cura 4.10, please watch <a href="https://youtu.be/OcFkcDyO5DU">our video</a>.</i>
+
 * Monotonic ordering
 The new Monotonic top/bottom order setting enables users to print parts with smoother top surfaces. This is especially useful for parts that need good aesthetics, such as visual prototypes. Or for parts that benefit from smooth surfaces, such as those that contact-sensitive components. 
 
@@ -34,6 +36,11 @@ When searching in the settings visibility menu you will also search in the descr
 - Fixed connecting USB printing with detecting baud-rates, contributed by rrrlasse
 - Fixed crash when Cura crashes on exit
 - Fixed a bug where the infill goes through walls
+- Fixed the version upgrade of preferences file
+- Fixed missing icons in deprecated icons list, contributed by fieldOfView
+- Fixed a crash in CuraEngine when the prime tower is placed in an invalid position
+- Fixed a bug when user is unable to sign in on Linux if a Keyring backend is installed
+- Fixed the rotation direction of the 90 degrees rotation arrows, contributed by fieldOfView
 
 * Printer definitions, profiles and materials:
 - Added SecKit SK-Tank, SK-Go printer definitions, contributed by SecKit

resources/texts/whats_new/0.html

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 <h4>Complete UI refresh</h4>
 <p>Look around and you will notice that we have refreshed over 100 icons throughout Ultimaker Cura. The new icons are designed for clarity – resulting in a simpler and more informative slicing experience. Also, when scaling the Ultimaker Cura window, the UI will adapt, resulting in less visual clutter.</br> 
-<a href="https://ultimaker.com/learn/clear-skies-with-ultimaker-cura-4-11-beta?utm_source=cura&utm_medium=software&utm_campaign=whatsnew-4-11-releaseblog">Learn more</a></p>
+<a href="https://ultimaker.com/learn/smooth-sailing-with-ultimaker-cura-4-11?utm_source=cura&utm_medium=software&utm_campaign=whatsnew-4-11-releaseblog">Learn more</a></p>

resources/texts/whats_new/3.html

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-<h4>Learn about the past and future of Ultimaker Cura</h4>
-<p>How did Ultimaker Cura start? What does its future hold? Hear the origin stories and discover what's next, by listening to the core developers and community featured in <a href="https://www.talkingadditive.com/episodes/episode-29-the-story-of-ultimaker-cura?utm_source=cura&utm_medium=software&utm_campaign=whatsnew-4-11-ta-ep29">episode 29</a> and <a href="https://www.talkingadditive.com/episodes/episode-30-the-future-of-ultimaker-cura-and-beyond?utm_source=cura&utm_medium=software&utm_campaign=whatsnew-4-11-ta-ep30">episode 30</a> of the Talking Additive podcast.</p>
+<h4>Stay tuned – Get the latest updates about Ultimaker products</h4>
+<p>Ultimaker is constantly improving our products to offer users the best 3D Printing experience. We host regular webinars and events to showcase what this ever-evolving platform can do for you. <a href="https://cloud.e.ultimaker.com/subscribe?utm_source=cura&utm_medium=software&utm_campaign=whatsnew-4-11-subscribe">Register here</a> to never miss an update. </p>

resources/texts/whats_new/4.html

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-<h4>Get more information</h4>
-<p>Want more information on new features, bug fixes, and more for Ultimaker Cura 4.11 beta? Read the full <a href="https://ultimaker.com/learn/clear-skies-with-ultimaker-cura-4-11-beta?utm_source=cura&utm_medium=software&utm_campaign=whatsnew-4-11-releaseblog">blog post</a> and don't forget to give us your feedback on <a href="https://github.com/Ultimaker/Cura/issues/new/choose">Github</a>!</p>
+<h4>Free new course available</h4>
+<p>To coincide with the improved Digital Library integration into Ultimaker Cura, we’ve created a new course about <a href="https://academy.ultimaker.com/lms/index.php?r=course/deeplink&course_id=231&generated_by=13028&hash=b25ad69eb4508e83a6e794654d7b7f2524fb5690">Digital Library Best Practices</a>. Learn how to get started, streamline your workflow and never waste time looking for that 3D model file again.</p>

resources/texts/whats_new/5.html

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+<h4>Learn about the past and future of Ultimaker Cura</h4>
+<p>How did Ultimaker Cura start? What does its future hold? Hear the origin stories and discover what's next, by listening to the core developers and community featured in <a href="https://www.talkingadditive.com/episodes/episode-29-the-story-of-ultimaker-cura?utm_source=cura&utm_medium=software&utm_campaign=whatsnew-4-11-ta-ep29">episode 29</a> and <a href="https://www.talkingadditive.com/episodes/episode-30-the-future-of-ultimaker-cura-and-beyond?utm_source=cura&utm_medium=software&utm_campaign=whatsnew-4-11-ta-ep30">episode 30</a> of the Talking Additive podcast.</p>