docs: add fastify-svelte-view to Ecosystem list (#6453)

* docs: add fastify-svelte-view to Ecosystem list

* Fix markdown lint complain

* fix linter complain

---------

Co-authored-by: Jean <110341611+jean-michelet@users.noreply.github.com>
Co-authored-by: Frazer Smith <frazer.dev@icloud.com>

Author: 3 people

docs/Guides/Ecosystem.md

@@ -207,6 +207,9 @@ section.
   A Fastify plugin that enforces naming pattern for routes path.
 - [`@joggr/fastify-prisma`](https://github.com/joggrdocs/fastify-prisma)
   A plugin for accessing an instantiated PrismaClient on your server.
+- [`@matths/fastify-svelte-view`](https://github.com/matths/fastify-svelte-view)
+  A Fastify plugin for rendering Svelte components with support for SSR
+  (Server-Side Rendering), CSR (Client-Side Rendering), and SSR with hydration.
 - [`@mgcrea/fastify-graceful-exit`](https://github.com/mgcrea/fastify-graceful-exit)
   A plugin to close the server gracefully
 - [`@mgcrea/fastify-request-logger`](https://github.com/mgcrea/fastify-request-logger)