improve typescript and linting usage across codebase

add ts-lit-plugin and eslint-typescript

disable no-invalid-css rule

fix a bunch of errors raised by eslint and typescript

run prettier & eslint on the remaining files

remove unused imports

split coll-index into index and info components...
and rename "coll" -> "item" for these.
also includes some fixes for previously-undocumented properties used on
non-ts elements.

extract labeled fields into separate component...
and make a few type improvements too

swap custom copy button for shoelace one

rename a few more missed things

src/replay.ts

@@ -1,13 +1,13 @@
 import { LitElement, html, css } from "lit";
-import { property, state } from "lit/decorators.js";
+import { property } from "lit/decorators.js";
 
 import { wrapCss, rwpLogo } from "./misc";
-import type { Coll } from "./types";
+import type { Item } from "./types";
 
 // ===========================================================================
 class Replay extends LitElement {
   @property({ type: Object })
-  collInfo: Coll | Record<string, never> | null = null;
+  collInfo: Item | Record<string, never> | null = null;
 
   @property({ type: String })
   sourceUrl: any = null;