Add blog post how to let nodes sizes consider the node labels

[soerendomroes]

Adds a blog post how to let nodes sizes consider the node labels by focusing on common pitfalls and edge cases to consider while highlighting the limitations of ELK.

[Copilot]

Pull Request Overview

This PR adds two new blog posts to the ELK documentation for 2025, focusing on the layered algorithm and node label handling. The changes create comprehensive guides for users working with ELK's layout algorithms.

Key changes:

• Added a detailed overview of the layered algorithm phases and configuration options
• Created a guide for proper node label sizing and placement with common pitfalls
• Updated blog navigation structure to accommodate 2025 content

Reviewed Changes

Copilot reviewed 6 out of 12 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
docs/content/blog/posts/2025/25-08-22-node-labels.md	New blog post explaining node label sizing and placement configurations
docs/content/blog/posts/2025/25-08-21-layered.md	New blog post providing comprehensive overview of layered algorithm phases
docs/content/blog/posts/2024/24-12-06-layer-unzipping.md	Updated title to include "Layered:" prefix for consistency
docs/content/blog/_index.md	Added new blog posts to the recent posts list
docs/content/blog/2025.md	Created new 2025 blog section
docs/content/blog/2024.md	Updated weight to maintain proper ordering

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[Eddykasp]

first merge #1166