Anway Durge

Dark switch added

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dark mode switch was added with Toggle button ### Description ### Code sample

dark mode switch added #300

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toggle switch was added in the top right corner of the webpage.

initialized repo

1

#2 issue solved

### Description ### Addressed Issue ### Additional Details ### Checklist - [x] I have read and understand the [contributing guidelines](https://github.com/DependencyTrack/dependency-track/blob/master/CONTRIBUTING.md#pull-requests) - [x] This PR introduces new or alters existing behavior,...