refactor: Replace Rollup with Vite (#2656)

This is a high risk change: every byte the card ships is emitted by a
different bundler, minified by a different minifier, and every
stylesheet is compiled by a different sass. The intent is that the
card's behaviour is unchanged.

**Significant development win**: Build time drops from 24s to 1.1s 🎉 

Also adds a test suite ('dist') that runs against the built bundle.

scripts/public-entries.ts

@@ -0,0 +1,13 @@
+/**
+ * The files a Home Assistant dashboard resource may list.
+ *
+ * Everything else the build emits is hashed, so this is the one name that has to
+ * stay put across releases.
+ */
+export const PUBLIC_ENTRY = 'advanced-camera-card.js';
+
+/**
+ * Both names a dashboard resource can name: the current one, and the one the
+ * card shipped under previously, kept so an existing resource keeps working.
+ */
+export const PUBLIC_ENTRIES = [PUBLIC_ENTRY, 'frigate-hass-card.js'];