Add typings to most of the Redux logic (#1269)

.eslintrc.js

packages/desktop-client/package.json

packages/desktop-client/src/components/Modals.js

packages/desktop-client/src/components/Notifications.tsx

...ges/desktop-client/src/components/manager/ImportActual.js

...ages/desktop-client/src/components/manager/ImportYNAB4.js

...ages/desktop-client/src/components/manager/ImportYNAB5.js

packages/desktop-client/src/components/manager/Modals.js

...p-client/src/components/modals/ConfigureLinkedAccounts.js

packages/desktop-client/src/hooks/useActions.ts

packages/desktop-client/src/hooks/useFeatureFlag.ts

packages/loot-core/package.json

packages/loot-core/src/client/actions/account.ts

packages/loot-core/src/client/actions/app.ts

packages/loot-core/src/client/actions/backups.ts

packages/loot-core/src/client/actions/budgets.ts

packages/loot-core/src/client/actions/debug.ts

packages/loot-core/src/client/actions/index.ts

packages/loot-core/src/client/actions/modals.ts

packages/loot-core/src/client/actions/notifications.ts