Dutch 🇳🇱

add dutch 🇳🇱 (#384)

* add dutch 🇳🇱

* update dutch types from spec

* remove stopgap, fix test

Swedish 🇸🇪

Swedish language translation provided by @tiptop96

PayPal format

• paypal links must now be a paypal.me username (not URL), per the spec
• conference_phone is now being sanitized and checked

Share button

Add share button to meeting listings on mobile devices

Speaker/Discussion

When meetings are tagged both Speaker (SP) and Discussion (D), TSML UI merges them into a combined Speaker/Discussion type. This enables users to use existing filters to locate Speaker-only and Discussion-only meetings.

Japanese 🇯🇵

add japanese language support
add support for google sheet data in other languages
fix subregion indentation

Weekday URL pattern

updates weekday URLs to be ?weekday=tuesday instead of ?weekday=2 -- if you link to these pages you'll want to update your links ASAP

accessibility updates

TypeScript

major internal refactor to finish conversion to typescript
no apparent changes, hopefully

Style updates

update bootstrap
fix font sizes
accessibility updates for #263

TypeScript

Converts more JavaScript to TypeScript - should be no noticeable differences with 1.4.6