feat: add dedicated newcomers guide page

[Thund3rHawk]

Description

This PR fixes #2178

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[gemini-code-assist]

Summary of Changes

Hello @Thund3rHawk, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request introduces a comprehensive 'Newcomers' guide page aimed at streamlining the onboarding process for new contributors. It integrates various resources, including a step-by-step contribution guide, a curated list of tutorials, and direct links to community engagement platforms. The goal is to provide a welcoming and informative entry point for individuals looking to get involved with the project, enhancing the overall contributor experience.

Highlights

• Newcomers Guide Page: A dedicated 'Newcomers' guide page has been added to the website, providing a centralized resource for new contributors.
• Navigation Integration: A new 'Newcomers' link has been added to the main navigation menu, making the guide easily accessible.
• Contribution Workflow: A detailed 'How to Contribute' section is included, outlining steps from finding issues to working on them and engaging with the community.
• Tutorials Section: A new section featuring a table of tutorials has been introduced, complete with dates, topics, resources (slides, recordings), and presenters, to help new contributors get started.
• Community Call-to-Action: A 'Join the community!' section with a call-to-action button to join the Slack workspace has been added to encourage engagement.

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[gemini-code-assist]

Code Review

This pull request introduces a new dedicated page for newcomers, which is a great initiative. It includes a contributor's journey map, a guide on how to contribute, a list of tutorials, and a call to action to join the community. The changes are well-structured, but there are several areas for improvement regarding code quality and maintainability.

Key feedback points:

• CSS Organization: Several new HTML files contain large blocks of inline CSS. It would be better to extract these styles into separate SCSS files under the _sass directory for better organization, maintainability, and reusability, following the pattern already used for _sass/tutorials-table.scss.
• Code Quality: There are some issues like placeholder links (href="#"), invalid HTML attributes (target=""), and incorrect SCSS selectors that need to be addressed.
• Best Practices: The use of !important in CSS should be avoided as it can lead to maintenance issues. Also, several new files are missing a final newline character, which is a common convention.
• Sass Syntax: There's a syntax error in css/screen.scss that will break the SCSS compilation.

[Namanv0509]

@Thund3rHawk please look over the suggestions first and resolve them if in high priority.

[Thund3rHawk]

Resolved high and medium priority bugs as per code review recommendations.