[Embeds] Embed for single post (#3450)

* add bskyembed vite app

* create build script (temp until embedr is ready)

* add build output to web build

* simplify post-build step by copying everything at once

* add simple post viewer

* add butterfly logo

* add vite plugin legacy

* proper error screen

* add image embed

* add url embed

* record embed + embedwithmedia

* add list+feed embeds

* add labeller embed (just to be safe)

* fix curatelist and modlist being the wrong way around

* Add PWI opt-out

* add favicon

* improve wording of PWI

* remove padding I used for screenshots

* add disabled state to embed

* improve PWI styles by adding an icon

* remove unused prop

* rm open proxy

* [Embeds] Add CTA and add general polish - input needed! (#3454)

* add CTA, colourful icons, and bigger logo

* make hover effect smaller + add to cta

* more responsive + preserve whitespace

* add trailing newsline to deploy script

* add repost indicator

* Make butterfly link to content

* More consistent error text wording

---------

Co-authored-by: Dan Abramov <dan.abramov@gmail.com>

bskyembed/vite.config.ts

@@ -1,18 +1,19 @@
-import {resolve} from 'node:path'
-
-// @ts-expect-error - not important
-import preactRefresh from '@prefresh/vite'
+import preact from '@preact/preset-vite'
+import legacy from '@vitejs/plugin-legacy'
 import type {UserConfig} from 'vite'
 import paths from 'vite-tsconfig-paths'
 
 const config: UserConfig = {
-  jsx: {
-    factory: 'h',
-    fragment: 'Fragment',
+  plugins: [
+    preact(),
+    paths(),
+    legacy({
+      targets: ['defaults', 'not IE 11'],
+    }),
+  ],
+  build: {
+    assetsDir: 'static/embed/assets',
   },
-  // eslint-disable-next-line @typescript-eslint/no-unsafe-call
-  plugins: [preactRefresh(), paths()],
-  assetsDir: 'static/embed/assets',
 }
 
 export default config