Prepare for release of v0.0.20

Add GitHub Actions workflow to build TiddlyDesktop (#289)

* Add GitHub Actions workflow to build TiddlyDesktop

* Build in parallel so it takes one-sixth as long

* Add release workflow

Creates draft releases so they can be edited (adding release notes, for
example) before they become visible to the public.

Prepare for v0.0.18

Update package-lock.json

Prepare for v0.0.16

Add search and tag support for the wikilist (#262)

* Add search and tag support for the wikilist

* Update WikiList SearchList Style.tid

* updated class names to tiddlydesktop format

* Corrected class names

* corrected class names

* Fix for duplicate results

Add debugging instructions for Windows

Fixes #214

Update to latest TW5 and nw.js

Fix window positions not being restored

Chrome has started limiting the length of window IDs so now we hash the ID to make sure it is short enough

Fix confirm/alert dialogs in iframes (#237)