feat(i18n): translate src/content/learn/preserving-and-resetting-state.md from English to Vietnamese#479

KotonoSora wants to merge 1 commit intoreactjs:mainreactjs/vi.react.dev:mainfrom

KotonoSora:preserving-and-resetting-stateKotonoSora/vi.react.dev:preserving-and-resetting-stateCopy head branch name to clipboard