[FEATURE] Implement Dynamic Theming for User-Selected App Color

[AyaNady17]

Description

This pull request introduces a dynamic theming feature that allows users to personalize the app's color scheme according to their preferences.
Fixes #281

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

tested manually

video5980830766718784570.mp4

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings

Maintainer Checklist

• closes #xxxx (Replace xxxx with the GitHub issue number)
• Tag the PR with the appropriate labels

[AyaNady17]

please review @chandansgowda

[chandansgowda]

Do we have to put the theme controller in each screen and controller? There should be cleaner alternatives for this.

[AyaNady17]

Thanks for the feedback. I've corrected the redundancy by using Get.find() to retrieve the theme controller instance, simplifying the code. in the future, I'll ensure to follow cleaner alternatives like this.
@chandansgowda

[AyaNady17]

there's any other problem? @chandansgowda

[AyaNady17]

I've solved the conflict @chandansgowda

[chandansgowda]

Great Job @AyaNady17