Trim extra blank lines in changelogs

Remove stray blank lines from CHANGELOG.md entries in packages/partyserver, packages/partysocket, and packages/y-partyserver to clean up formatting and keep bullet lists compact. No substantive content changes.

Author: threepointone

packages/partyserver/CHANGELOG.md

@@ -280,14 +280,12 @@
 ### Patch Changes
 
 - [`528adea`](https://github.com/threepointone/partyserver/commit/528adeaced6dce6e888d2f54cc75c3569bf2c277) Thanks [@threepointone](https://github.com/threepointone)! - some fixes and tweaks
-
   - getServerByName was throwing on all requests
   - `Env` is now an optional arg when defining `Server`
   - `y-partyserver/provider` can now take an optional `prefix` arg to use a custom url to connect
   - `routePartyKitRequest`/`getServerByName` now accepts `jurisdiction`
 
   bonus:
-
   - added a bunch of fixtures
   - added stubs for docs
 

packages/partysocket/CHANGELOG.md

@@ -319,7 +319,6 @@
 ### Patch Changes
 
 - [#251](https://github.com/partykit/partykit/pull/251) [`049bcac`](https://github.com/partykit/partykit/commit/049bcac42aa49e4bddec975c63b7d7984112e450) Thanks [@threepointone](https://github.com/threepointone)! - small tweaks to `init`
-
   - replace `process.env.PARTYKIT_HOST` with just `PARTYKIT_HOST`
   - add a `tsconfig.json`
   - add partykit to devDependencies in `init`
@@ -340,7 +339,6 @@
 - [#211](https://github.com/partykit/partykit/pull/211) [`fffe721`](https://github.com/partykit/partykit/commit/fffe72148e5cc425e80c90b6bf180192df410080) Thanks [@threepointone](https://github.com/threepointone)! - update dependencies
 
 - [#191](https://github.com/partykit/partykit/pull/191) [`39cf5ce`](https://github.com/partykit/partykit/commit/39cf5cebf5e699bc50ace8b6d25cd82c807e863a) Thanks [@jevakallio](https://github.com/jevakallio)! - Improve PartySocket types and React hooks API:
-
   - Add websocket lifecycle event handlers to usePartyKit options to reduce need for effects in userland
   - Allow usePartySocket to provide startClosed option to initialize without opening connection
   - Fix types for PartySocket#removeEventListener

packages/y-partyserver/CHANGELOG.md

@@ -7,7 +7,6 @@
 - [#341](https://github.com/cloudflare/partykit/pull/341) [`e7f4b51`](https://github.com/cloudflare/partykit/commit/e7f4b51198904273befb1d39478840c628f6e2b1) Thanks [@threepointone](https://github.com/threepointone)! - Fix Yjs hibernation support and awareness propagation
 
   **Server:**
-
   - Replace in-memory `WSSharedDoc.conns` Map with `connection.setState()` and `getConnections()` so connection tracking survives Durable Object hibernation
   - Move event handler registration from `WSSharedDoc` constructor into `onStart()` to use `getConnections()` for broadcasting
   - Disable awareness protocol's built-in `_checkInterval` in `WSSharedDoc` constructor to prevent timers from defeating hibernation
@@ -17,7 +16,6 @@
   - Widen `onLoad()` return type to `Promise<YDoc | void>` to allow seeding the document from a returned YDoc
 
   **Provider:**
-
   - Switch awareness event listener from `"update"` to `"change"` so clock-only heartbeat renewals do not produce network traffic (allows DO hibernation during idle sessions)
   - Disable awareness protocol's built-in `_checkInterval` on the client to stop 15-second clock renewals and 30-second peer timeout removal
   - Remove provider's own `_checkInterval` liveness timer (was coupled to the awareness heartbeat)
@@ -352,14 +350,12 @@
 ### Patch Changes
 
 - [`528adea`](https://github.com/threepointone/partyserver/commit/528adeaced6dce6e888d2f54cc75c3569bf2c277) Thanks [@threepointone](https://github.com/threepointone)! - some fixes and tweaks
-
   - getServerByName was throwing on all requests
   - `Env` is now an optional arg when defining `Server`
   - `y-partyserver/provider` can now take an optional `prefix` arg to use a custom url to connect
   - `routePartyKitRequest`/`getServerByName` now accepts `jurisdiction`
 
   bonus:
-
   - added a bunch of fixtures
   - added stubs for docs