removing unused variables (batch 2) (#2256)

.eslintrc.js

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

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

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

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

packages/desktop-client/src/components/accounts/Account.jsx

.../desktop-client/src/components/accounts/MobileAccount.jsx

...ges/desktop-client/src/components/budget/MobileBudget.tsx

...esktop-client/src/components/budget/MobileBudgetTable.jsx

.../desktop-client/src/components/budget/SidebarCategory.tsx

...ges/desktop-client/src/components/budget/SidebarGroup.tsx

packages/desktop-client/src/components/budget/index.tsx

...op-client/src/components/budget/report/BalanceTooltip.tsx

...op-client/src/components/budget/rollover/CoverTooltip.tsx

...client/src/components/budget/rollover/TransferTooltip.tsx

...omponents/budget/rollover/budgetsummary/BudgetSummary.tsx

packages/desktop-client/src/components/common/Menu.tsx

...esktop-client/src/components/modals/CategoryGroupMenu.tsx

...ges/desktop-client/src/components/modals/CategoryMenu.tsx

packages/desktop-client/src/components/modals/EditRule.jsx