fix: use incremental in production build

[ahabhgk]

Summary

fix #8106 (comment)

Before using incremental: true will panic in production build, caused by concatenateModules, this is expected but we should have better experience, so this PR will disable incremental.moduleHashes/moduleCodegen/moduleRuntimeRequirements when using with concatenateModules/usedExports/mangleExports, and log warnings.

And the docs is also updated to recommend user to only enable incremental in development mode.

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

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[chenjiahan]

LGTM 👍

When incremental becomes more stable, we can provide more optimal defaults to reduce the burden on users to understand these configurations.

[slorber]

I tried incremental true in facebook/docusaurus#10648

I got the following warnings, despite not configuring usedExports.

<w> [rspack.FlagDependencyUsagePlugin] `optimization.usedExports` can't be used with `incremental.modulesHashes` as export usage is a global effect. `incremental.modulesHashes` has been overridden to false.
<w> [rspack.FlagDependencyUsagePlugin] `optimization.usedExports` can't be used with `incremental.modulesCodegen` as export usage is a global effect. `incremental.modulesCodegen` has been overridden to false.
<w> [rspack.FlagDependencyUsagePlugin] `optimization.usedExports` can't be used with `incremental.modulesRuntimeRequirements` as export usage is a global effect. `incremental.modulesRuntimeRequirements` has been overridden to false.
<w> [rspack.FlagDependencyUsagePlugin] `optimization.usedExports` can't be used with `incremental.modulesHashes` as export usage is a global effect. `incremental.modulesHashes` has been overridden to false.
<w> [rspack.FlagDependencyUsagePlugin] `optimization.usedExports` can't be used with `incremental.modulesCodegen` as export usage is a global effect. `incremental.modulesCodegen` has been overridden to false.
<w> [rspack.FlagDependencyUsagePlugin] `optimization.usedExports` can't be used with `incremental.modulesRuntimeRequirements` as export usage is a global effect. `incremental.modulesRuntimeRequirements` has been overridden to false.

The error doesn't make it super clear to understand what is happening and what I should do.

Rereading the docs/blog post it's quite obvious: I'll disable this in prod builds.