A size watcher component used to get viewport size.

## Install

```shell
npm install @fluid-topics/ft-size-watcher
yarn add @fluid-topics/ft-size-watcher
```

## Usage

```typescript
import { html } from "lit"
import "@fluid-topics/ft-size-watcher"

function render() {
    return html` <ft-size-watcher></ft-size-watcher> `
}
```