ESLint prefer-const (#1956)

.eslintrc.js

packages/api/app/query.js

packages/crdt/src/crdt/merkle.test.ts

packages/crdt/src/crdt/merkle.ts

packages/crdt/src/crdt/timestamp.test.ts

packages/crdt/src/crdt/timestamp.ts

packages/desktop-client/src/browser-preload.browser.js

packages/desktop-client/src/browser-server.js

packages/desktop-client/src/global-events.js

packages/desktop-client/src/gocardless.js

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

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

packages/desktop-client/src/hooks/useProperFocus.tsx

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

packages/desktop-client/src/hooks/useSelected.tsx

packages/desktop-client/src/icons/Loading.tsx

packages/desktop-client/src/plaid.js

packages/desktop-client/src/style/styles.ts

packages/desktop-client/src/style/theme.tsx

packages/desktop-client/src/util/router-tools.tsx