Feat/performance

[jonathand-cf]

This pull request focuses on improving image optimization and updating content across the UiASub website. The main changes include switching image formats to more efficient .webp and .svg, updating media and timeline content, and making minor enhancements to scripts and text for better user experience.

Image and Media Optimization:

• Updated multiple image references in data/news.json and en/index.html from .png/.jpg to .webp for better performance and reduced file size. [1] [2] [3] [4] [5] [6] [7] [8]
• Changed sponsor image for "Würth Elektronik" from .png to .svg in data/sponsors.json for improved scalability and clarity.
• Updated several images in en/index.html and en/pages/about.html to new or more relevant photos, enhancing the visual presentation of the site. [1] [2] [3] [4] [5] [6]

Content and Timeline Updates:

• Adjusted project timeline badges and dot colors in en/pages/rov.html to accurately reflect project status ("Ongoing", "Completed", etc.) and clarified the visual timeline. [1] [2] [3]
• Updated the 404 page message for a more thematic and engaging user experience.

Script and Asset Loading Improvements:

• Added service worker registration script to 404.html for improved offline support, and removed redundant script from en/index.html. [1] [2]
• Removed unused inline JavaScript from en/pages/rov.html to clean up the codebase.

Minor Enhancements and Clean-up:

• Updated README header formatting for clarity.
• Added missing newlines at the end of several HTML files for consistency and better formatting. [1] [2] [3] [4] [5] [6] [7]
• Minor clean-up of CSS and head sections in en/pages/news.html.

These changes collectively enhance the website's performance, maintainability, and user experience.