Lint all da things

src/bot.ts

src/channelsyncroniser.ts

src/db/postgres.ts

src/db/sqlite3.ts

src/discordas.ts

src/log.ts

src/matrixeventprocessor.ts

src/matrixroomhandler.ts

src/messageprocessor.ts

src/presencehandler.ts

src/store.ts

src/usersyncroniser.ts

src/util.ts

test/mocks/channel.ts

test/mocks/discordclientfactory.ts

test/mocks/emoji.ts

test/test_channelsyncroniser.ts

test/test_discordbot.ts

test/test_matrixeventprocessor.ts

test/test_messageprocessor.ts