[Docs] Incorrect themeConfig object in Search Button example

[matteobu]

As discussed in this Slack thread, the OramaSearchButton component has an issue with a duplicate themeConfig object.

Current Example (Incorrect):

import { OramaSearchButton } from '@orama/react-components';

<OramaSearchButton
  size="large"
  colorScheme="dark"
  themeConfig={{
    themeConfig: {
      colors: {
        dark: {
          '--background-color-primary': '#231102'
        },
      },
    },
  }}
>
  Search something...
</OramaSearchButton>

Corrected Version:

import { OramaSearchButton } from '@orama/react-components';

 <OramaSearchButton
        size="large"
        colorScheme="dark"
        themeConfig={{
          colors: {
            dark: {
              '--background-color-primary': '#231102',
            },
          },
        }}
      >
        Search something...
      </OramaSearchButton>

The extra themeConfig nesting is unnecessary and should be removed for proper configuration.

[matteobu]

I can push the change if you agree.