Accessibility content 2025 (#4298)

* Add accessibility 2025 contributors

* Add accessibility 2025 content md

Adds the final markdown file together with the generated images (ran
through tinypng)

* Sort contributors

* Fix charts and regenerate images

* Remove bolded EU link

Co-authored-by: Barry Pollard <barrypollard@google.com>

* Remove redundant methodology mention

Co-authored-by: Barry Pollard <barrypollard@google.com>

* Add code formatting around duplicate-id

Co-authored-by: Barry Pollard <barrypollard@google.com>

* Update comparison with WebAIM

Co-authored-by: Barry Pollard <barrypollard@google.com>

* Add mention of Lighthouse usage of axe-core

Co-authored-by: Barry Pollard <barrypollard@google.com>

* Remove extra line

Co-authored-by: Barry Pollard <barrypollard@google.com>

* Remove extra decimal points

Co-authored-by: Barry Pollard <barrypollard@google.com>

* Remove extra decimal points

Co-authored-by: Barry Pollard <barrypollard@google.com>

* Improve content based on feedback

Add AI intro text, improve some figure descriptions.

* Reorder charts and content

* Update images for charts

* Apply suggestions from code review

* Retake images

* Update src/content/en/2025/accessibility.md

* Update src/content/en/2025/accessibility.md

* Add small word tweaks

- Changed email to newsletter in Bogdan's bio
- Changed chapter to section in the AI intro

* Fix typo

---------

Co-authored-by: Barry Pollard <barrypollard@google.com>

Author: tricinel

src/config/2025.json

@@ -81,8 +81,7 @@
           "part": "II",
           "chapter_number": "9",
           "title": "Accessibility",
-          "slug": "accessibility",
-          "todo": true
+          "slug": "accessibility"
         },
         {
           "part": "II",

src/config/contributors.json

@@ -74,16 +74,6 @@
       ]
     }
   },
-  "onurguler18": {
-    "avatar_url": "39603688",
-    "github": "onurguler18",
-    "name": "Onur Güler",
-    "teams": {
-      "2024": [
-        "analysts"
-      ]
-    }
-  },
   "argyleink": {
     "avatar_url": "1134620",
     "github": "argyleink",
@@ -170,6 +160,18 @@
     "twitter": "MrAhmadAwais",
     "website": "https://AhmadAwais.com"
   },
+  "atierney": {
+    "avatar_url": "9468139",
+    "name": "Aidan Tierney",
+    "github": "AidanA11y",
+    "linkedin": "aidantierney",
+    "bluesky": "aidantierney.bsky.social",
+    "teams": {
+      "2025": [
+        "reviewers"
+      ]
+    }
+  },
   "akshay-ranganath": {
     "avatar_url": "54864775",
     "github": "akshay-ranganath",
@@ -692,7 +694,8 @@
       ],
       "2025": [
         "committee",
-        "developers"
+        "developers",
+        "analysts"
       ]
     },
     "twitter": "tunetheweb",
@@ -781,6 +784,20 @@
     },
     "website": "https://iambharat.me"
   },
+  "tricinel": {
+    "avatar_url": "216008",
+    "name": "Bogdan Lazar",
+    "github": "tricinel",
+    "bluesky": "bogdanlazar.com",
+    "linkedin": "tricinel",
+    "website": "https://bogdanlazar.com",
+    "teams": {
+      "2025": [
+        "authors",
+        "editors"
+      ]
+    }
+  },
   "borisschapira": {
     "avatar_url": "284742",
     "github": "borisschapira",
@@ -1906,6 +1923,9 @@
     "teams": {
       "2024": [
         "reviewers"
+      ],
+      "2025": [
+        "reviewers"
       ]
     },
     "mastodon": "https://front-end.social/@hdv",
@@ -3230,6 +3250,10 @@
       "2024": [
         "analysts",
         "authors"
+      ],
+      "2025": [
+        "authors",
+        "analysts"
       ]
     },
     "website": "https://accessibility.civicactions.com/"
@@ -3568,6 +3592,16 @@
     "twitter": "oluoluoxenfree",
     "website": "https://olu.online/"
   },
+  "onurguler18": {
+    "avatar_url": "39603688",
+    "github": "onurguler18",
+    "name": "Onur Güler",
+    "teams": {
+      "2024": [
+        "analysts"
+      ]
+    }
+  },
   "pankajparkar": {
     "avatar_url": "5320044",
     "github": "pankajparkar",
@@ -4233,6 +4267,9 @@
       ],
       "2022": [
         "authors"
+      ],
+      "2025": [
+        "reviewers"
       ]
     },
     "twitter": "scottdavis99",