v0.18.0

### API Deprecations

Not breaking yet, but will be breaking in the next release.

- `iroh`
    - `client::Client.blobs`, use `client::Client::blobs()`
    - `client::Client.docs`, use `client::Client::docs()`
    - `client::Client.authors`, use `client::Client::authors()`
    - `client::Client.tags`, use `client::Client::tags()`

### API Breaking Changes

- `iroh-blobs`
    - removed
        - `util::LivenessTracker`
        - `downloader::DownloadRequest`
            - field `tag`
            - function `untagged`
            - function `tag`
    - added
        - `util::TagDrop`
        - `util::TagCounter`
- `iroh-gossip`
    - added
        - `Gossip::max_message_size`
    - changed
        - `net::util::read_message`, added `max_message_size` param
        - `net::util::write_message`, added `max_message_size` param
        - `net::util::read_lp`, added `max_message_size` param
    - removed
        - `proto::MAX_MESSAGE_SIZE`


### ⛰️  Features

- *(iroh-gossip)* Configure the max message size ([#2340](https://github.com/n0-computer/iroh/issues/2340)) - ([7153a38](https://github.com/n0-computer/iroh/commit/7153a38bc52a8cec877c8b874f37a37658b99370))

### 🐛 Bug Fixes

- *(docs)* Prevent deadlocks with streams returned from docs actor ([#2346](https://github.com/n0-computer/iroh/issues/2346)) - ([98914ee](https://github.com/n0-computer/iroh/commit/98914ee4dcdb78f7477311f933d84f4f2478e168))
- *(iroh-net)* Fix extra delay ([#2330](https://github.com/n0-computer/iroh/issues/2330)) - ([77f92ef](https://github.com/n0-computer/iroh/commit/77f92efd16e523c41b0e01aa5a7e11e9aae3e795))
- *(iroh-net)* Return `Poll::Read(Ok(n))` when we have no relay URL or direct addresses in `poll_send` ([#2322](https://github.com/n0-computer/iroh/issues/2322)) - ([b2f0b0e](https://github.com/n0-computer/iroh/commit/b2f0b0eb84ef8f4a9962d540805a148a103d1e2b))

### 🚜 Refactor

- *(iroh)* [**breaking**] Replace public fields in iroh client with accessors and use ref-cast to eliminate them entirely ([#2350](https://github.com/n0-computer/iroh/issues/2350)) - ([35ce780](https://github.com/n0-computer/iroh/commit/35ce7805230ac7732a1bf3213be5424a1e019a44))
- *(iroh)* [**breaking**] Remove tags from downloader ([#2348](https://github.com/n0-computer/iroh/issues/2348)) - ([82aa93f](https://github.com/n0-computer/iroh/commit/82aa93fc5e2f55499ab7d29b18029ae47c519c3a))
- *(iroh-blobs)* [**breaking**] Make TempTag non-Clone ([#2338](https://github.com/n0-computer/iroh/issues/2338)) - ([d0662c2](https://github.com/n0-computer/iroh/commit/d0662c2d980b9fe28c669f2e6262c446d08bf7bf))
- *(iroh-blobs)* [**breaking**] Implement some collection related things on the client side ([#2349](https://github.com/n0-computer/iroh/issues/2349)) - ([b047b28](https://github.com/n0-computer/iroh/commit/b047b28ddead8f357cb22c67c6e7ada23db5deb8))
- Move docs engine into iroh-docs ([#2343](https://github.com/n0-computer/iroh/issues/2343)) - ([3772889](https://github.com/n0-computer/iroh/commit/3772889cd0a8e02731e5dc9c2a1e2f638ab2691a))

### 📚 Documentation

- *(iroh-net)* Update toplevel module documentation ([#2329](https://github.com/n0-computer/iroh/issues/2329)) - ([4dd69f4](https://github.com/n0-computer/iroh/commit/4dd69f44d62e3b671339ce586a2f7e97a47559ff))
- *(iroh-net)* Update endpoint docs ([#2334](https://github.com/n0-computer/iroh/issues/2334)) - ([8d91b10](https://github.com/n0-computer/iroh/commit/8d91b10e25e5a8363edde3c41a1bce4f9dc7455a))

### 🧪 Testing

- Disable a flaky tests ([#2332](https://github.com/n0-computer/iroh/issues/2332)) - ([23e8c7b](https://github.com/n0-computer/iroh/commit/23e8c7b3d5cdc83783822e3fa10b09e798d24f22))

### ⚙️ Miscellaneous Tasks

- *(ci)* Update clippy ([#2351](https://github.com/n0-computer/iroh/issues/2351)) - ([7198cd0](https://github.com/n0-computer/iroh/commit/7198cd0f69cd0a178db3b71b7ee58ea5f285b95e))