- Fix a bug (introduced in 1b9be8fe) preventing the tree view from being
visible during a search.
- Fix a minor bug where the scripts view does not render based on the
initial filter.
- Add Vue component tests for `TheScriptView` to prevent regressions.
- Refactor `isSearching` in `TheScriptView` to simplify its logic.
Major refactoring using ESLint with rules from AirBnb and Vue.
Enable most of the ESLint rules and do necessary linting in the code.
Also add more information for rules that are disabled to describe what
they are and why they are disabled.
Allow logging (`console.log`) in test files, and in development mode
(e.g. when working with `npm run serve`), but disable it when
environment is production (as pre-configured by Vue). Also add flag
(`--mode production`) in `lint:eslint` command so production linting is
executed earlier in lifecycle.
Disable rules that requires a separate work. Such as ESLint rules that
are broken in TypeScript: no-useless-constructor (eslint/eslint#14118)
and no-shadow (eslint/eslint#13014).
