Move @backstage/techdocs-addons to @backstage/plugin-techdocs-react

Co-authored-by: Eric Peterson <iamEAP@users.noreply.github.com>
Co-authored-by: Anders Näsman <realandersn@users.noreply.github.com>
Signed-off-by: Otto Sichert <git@ottosichert.de>

scripts/api-extractor.ts

@@ -225,7 +225,6 @@ const NO_WARNING_PACKAGES = [
   'packages/integration',
   'packages/integration-react',
   'packages/search-common',
-  'packages/techdocs-addons',
   'packages/techdocs-common',
   'packages/test-utils',
   'packages/theme',
@@ -261,6 +260,7 @@ const NO_WARNING_PACKAGES = [
   'plugins/techdocs',
   'plugins/techdocs-backend',
   'plugins/techdocs-node',
+  'plugins/techdocs-react',
   'plugins/tech-insights',
   'plugins/tech-insights-backend',
   'plugins/tech-insights-backend-module-jsonfc',