chore(deps): update dependency webpack-dev-server to v4 - abandoned

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This PR contains the following updates:

Package	Type	Update	Change
webpack-dev-server	devDependencies	major	^3.8.1 -> ^4.0.0

By merging this PR, the issue #30 will be automatically resolved and closed:

Severity	CVSS Score	CVE
High	9.8	CVE-2022-0691
High	9.1	CVE-2022-0686
High	7.5	CVE-2020-7662
High	7.5	CVE-2021-23424
High	7.5	CVE-2022-24771
High	7.5	CVE-2022-24772
High	7.5	CVE-2022-24999
High	7.3	CVE-2020-7720
Medium	6.6	WS-2022-0008
Medium	6.5	CVE-2021-23386
Medium	6.5	CVE-2022-0155
Medium	6.1	CVE-2022-0122
Medium	5.9	CVE-2022-0536
Medium	5.3	CVE-2020-7693
Medium	5.3	CVE-2021-27515
Medium	5.3	CVE-2021-32640
Medium	5.3	CVE-2021-3664
Medium	5.3	CVE-2022-0512
Medium	5.3	CVE-2022-0639
Medium	5.3	CVE-2022-24773

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