added new Spinner component, change axiosinstance baseUrl to be gener…

[DnTora]

…ic, added new styles

Description

1. added new theme style.
2. added Spinner component.
3. changed axiosInstance baseUrl to be genergic.
4. added scss variables file.

Type of change

Please delete options that are not relevant.

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

How Has This Been Tested?

I tested it on my local browser, and running it few times and tried several scenarios and end points.

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