Added VolumeTweaker

[Tripticon84]

VolumeTweaker

Add a bunch of options to customize the volume popup like:

• The rounded corners
• The width
• Animation to the volume bar
• An option to disable the speaker icon

Checklist

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• [X] I am the original author of this theme or have permission from the original author to make this pull request.
• [X] All copyright of this theme's contents belong to the listed author or is cited in the repository linked above.
• [X] This theme's target has been marked appropriately and only styles said target.
• [X] This theme works properly on the latest versions of SteamOS for Steam Deck, decky-loader and SDH-CssLoader.
• [X] This theme only uses * or !important if absolutely necessary.
• [X] This theme is under 4MB in size and uses the least disk space possible.
• [X] This theme's preview image does not include text unless it is necessary to describe changes that can be made.
• [X] This theme is safe for work and does not contain any sexual, drug-related, or profane content.
• [X] This theme prefixes any CSS variables with a unique identifier.

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• [X] I am not bundling a part of another theme with this theme to encourage mixing and matching themes.
• [ ] Themes included with this theme are toggleable using a patch.

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• [ ] This is a keyboard theme applied to the default keyboard.
• [ ] This is a system-wide theme applied to the default keyboard. The keyboard is toggleable using a patch.
• [X] This theme does not target the keyboard.

[suchmememanyskill]

Hi, would you mind resubmitting this on DeckThemes

[Tripticon84]

Resubmitted on the site