plugin-knowledge-bases: migrate eslint and prettier to biome

[Iru89]

Description

• Migrate botonic-plugin-knowledge-bases package from ESLint + Prettier to Biome for linting and formatting
• This is the third package migrated as part of the Biome migration plan

Changes

Package configuration (packages/botonic-plugin-knowledge-bases/package.json)

• Updated lint scripts to use Biome:
  • lint: biome check --write src/
  • lint:check: biome check src/
  • format: biome format --write src/
• Removed eslintConfig section

Code formatting

Biome automatically fixed type-only imports:

• import { AxiosResponse } → import type { AxiosResponse }
• import { Chunk } → import type { Chunk }
• import { KnowledgeBasesResponse } → import type { KnowledgeBasesResponse }
• And other similar type imports

Pre-commit hooks (.pre-commit-config.yaml)

• Added botonic-plugin-knowledge-bases to the Biome hook pattern
• Removed the ESLint hook for this package

Prettier ignore (.prettierignore)

• Added packages/botonic-plugin-knowledge-bases/ to prevent conflicts between Prettier and Biome

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