Improve the angular.dev dark mode

[surajchopra1234]

Describe the problem that you experienced

• Angular.dev docs have too low contrast between the text and the background.
• The background is pitch black, which is very irritating to the eyes.
• The links are not visually distinct enough to be easily recognizable as clickable elements.
• The blue color isn't bright enough to differentiate between itself and the pink in the code block.

In conclusion, the dark color scheme of Angular.dev hinders readability.

What the contrast improvement look like :

Enter the URL of the topic with the problem

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Describe what you were looking for in the documentation

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Describe the actions that led you to experience the problem

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Describe what you want to experience that would fix the problem

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Add a screenshot if that helps illustrate the problem

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If this problem caused an exception or error, please paste it here

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If the problem is browser-specific, please specify the device, OS, browser, and version

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Provide any additional information here in as much as detail as you can

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[JeanMeche]

Hi, let's continue this discussion over at #52654.