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
emma