fix: webpack 5 deprecation warnings

[webdiscus]

Hello Simon,

during Webpack process via npm run build are displayed deprecation warnings:

[DEP_WEBPACK_CHUNK_HAS_ENTRY_MODULE] DeprecationWarning: Chunk.hasEntryModule: Use new ChunkGraph API
[DEP_WEBPACK_CHUNK_ENTRY_MODULE] DeprecationWarning: Chunk.entryModule: Use new ChunkGraph API
[DEP_WEBPACK_MODULE_INDEX] DeprecationWarning: Module.index: Use new ModuleGraph API

This happens because is used outdated the webpack-fix-style-only-entries.

Warning

This plugin is not compatible with webpack 5. There is a fork here that is compatible: webpack-remove-empty-scripts

This PR replace the webpack-fix-style-only-entries with webpack-remove-empty-scripts package.