Initialize NPM config

[prepfarm]

New Pull Request

Prerequisites

Please make sure you can check the following boxes:

• I have read the CONTRIBUTING document
• My code follows the code style of this project
• All new and existing tests passed

Type(s) of Changes

Contribution Type

What types of changes does your code introduce? Put an x in all the boxes that apply:

• Bug fix (non-breaking change which fixes an issue, please reference the issue id)
• New feature (non-breaking change which adds functionality, make sure to open an associated issue first)
• Breaking change (fix or feature that would cause existing functionality to change)
• I have updated the documentation accordingly
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Description

Fixes #133
Copies .npmrc (before npm scrips are executed) if exists, else uses provided value from NpmRegistry property to create .npmrc.

Remarks

@FlorianRappl this PR provides same changes #136 had, but for blazor-8.0

[prepfarm]

Btw. @FlorianRappl when can we expect new package releases (for both 7 and 8)?

[FlorianRappl]

Much appreciated!

[FlorianRappl]

Btw. @FlorianRappl when can we expect new package releases (for both 7 and 8)?

The pre-release is already out (the PR did not change the version so it's still a v12 one; e.g., 7.0.12-pre.20240213.2 ) but I'll make the version change to have it as v13.