feat: setup template-imports in core pkg · josemarluedke/frontile@970f046

Replace `"@babel/preset-typescript",·{onlyRemoveTypeImports:·true` with `'@babel/preset-typescript',·{·onlyRemoveTypeImports:·true·`

Strings must use singlequote

Replace `"@embroider/addon-dev/template-colocation-plugin"` with `'@embroider/addon-dev/template-colocation-plugin'`

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Delete `,`

Replace `"@babel/plugin-proposal-decorators",·{·"legacy"` with `'@babel/plugin-proposal-decorators',·{·legacy`

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Strings must use singlequote

Replace `"@babel/plugin-proposal-class-properties"` with `'@babel/plugin-proposal-class-properties'`

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The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, volta-cli/action@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/