fix: the isAlgoliaSearch variable set to boolean type

[veaba]

Description of Problem

  isAlgoliaSearch() {
      return this.algolia && this.algolia.apiKey && this.algolia.indexName // string type
    }

Proposed Solution

  isAlgoliaSearch() {
      return !!(this.algolia && this.algolia.apiKey && this.algolia.indexName) //  boolean type
    }

  // config.js: disabled algolia
  algolia: {
      // indexName: 'vuejs-v3',
      // apiKey: 'bc6e8acb44ed4179c30d0a45d6140d3f'
    }

You should be able to use searchbox now, but origin code can't work, so change the condition.

    <SearchBox
        v-if="
          isAlgoliaSearch === false &&
            (
              $site.themeConfig.search !== false &&
              $page.frontmatter.search !== false
            )
        "
      />

Additional Information

Use searchBox when disabled algoliaSearchBox.

it work:

[NataliaTepluhina]

@veaba great catch! Thank you 👍🏻