chore: Enhance documentation for E2E testing:

- Added clarity and structure to README files, including recent updates and getting started sections.
- Improved manual verification documentation for CrowdSec authentication, emphasizing expected outputs and success criteria.
- Updated debugging guide with detailed output examples and automatic trace capture information.
- Refined best practices for E2E tests, focusing on efficient polling, locator strategies, and state management.
- Documented triage report for DNS Provider feature tests, highlighting issues fixed and test results before and after improvements.
- Revised E2E test writing guide to include when to use specific helper functions and patterns for better test reliability.
- Enhanced troubleshooting documentation with clear resolutions for common issues, including timeout and token configuration problems.
- Updated tests README to provide quick links and best practices for writing robust tests.

docs/features/caddyfile-import.md

@@ -52,6 +52,7 @@ Caddyfile import parses your existing Caddy configuration files and converts the
 Choose one of three methods:
 
 **Paste Content:**
+
 ```
 example.com {
     reverse_proxy localhost:3000
@@ -63,10 +64,12 @@ api.example.com {
 ```
 
 **Upload File:**
+
 - Click **Choose File**
 - Select your Caddyfile
 
 **Fetch from URL:**
+
 - Enter URL to raw Caddyfile content
 - Useful for version-controlled configurations