fix: linkchecker include filter port mismatch (#2242)

* initial commit; fixed anchor links on internal docs pages

* add back in absolute paths for links in code comments

* fix: update linkchecker include filter to match server port 1314

PR #1629 changed the Hugo server to port 1314 but forgot to update
the --include filter, which still matched port 1313. This caused all
links to be excluded, making the checker a no-op (0 checked, 82277 excluded).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* Fix url rewrite regex so images are not impacted

* Fix links from non-documentation pages

* Fix broken links

* more broken links

* more broken links

* broken link

* Add srcset width descriptor to .lycheeignore

* Ignore URLs that contain a % character

* Anchor regex so it matches the entire URL

---------

Co-authored-by: kanungle <neil.kanungo@gmail.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: Abdon Pijpelink <abdon.pijpelink@qdrant.com>

qdrant-landing/content/learn/_index.md

@@ -50,7 +50,7 @@ content:
             - "Advanced: Production optimization"
       
       link:
-        url: /course/essentials
+        url: /course/essentials/
         text: View Courses
     - id: 3
       image:
@@ -66,7 +66,7 @@ content:
             - "Develop and Implement"
       
       link:
-        url: /documentation/tutorials-lp-overview
+        url: /documentation/tutorials-lp-overview/
         text: Explore Tutorials
   - partial: documentation/sections/cards-section
     title: Quickstart
@@ -82,7 +82,7 @@ content:
       description: Start with our beginner-friendly exercises on vector embeddings and basic concepts.
       link:
         text: Start Learning
-        url: /documentation/tutorials-basics
+        url: /documentation/tutorials-basics/
     - id: 2
       icon:
         src: /icons/outline/hacker-purple.svg