PR Checklist

• The PR title follows our guidelines: https://github.com/NativeScript/NativeScript/blob/master/tools/notes/CONTRIBUTING.md#commit-messages.
• There is an issue for the bug/feature this PR is for. To avoid wasting your time, it's best to open a suggestion issue first and wait for approval before working on it.
• You have signed the CLA.
• All existing tests are passing: https://github.com/NativeScript/NativeScript/blob/master/tools/notes/DevelopmentWorkflow.md#running-unit-tests-application.
• Tests for the changes are included - https://github.com/NativeScript/NativeScript/blob/master/tools/notes/WritingUnitTests.md.

What is the current behavior?

@nativescript/webpack declares several dependencies in its package.json that are never imported or referenced anywhere in the source: lodash.get and micromatch (along with their @types/lodash.get and @types/micromatch type packages). Additionally, a generated package-lock.json was committed and tracked in the package.

What is the new behavior?

• Removed the unused lodash.get and micromatch runtime dependencies and their corresponding @types/* dev dependencies.
• Stopped tracking packages/webpack5/package-lock.json (deleted it and added it to the package's .gitignore).

Peer-required dependencies that have no direct source references (@babel/core for babel-loader, @vue/compiler-sfc for vue-loader) were intentionally kept.