[Feature] Support changing accent/primary color (#282)

* [Feature] Support changing accent/primary color

- adds color picker to settings with five swatches (blue default, yellow green and red imported from sonixd, purple new)
- changing color will change the appropriate css variable

* Remove hover styles that use an alternate primary

---------

Co-authored-by: Jeff <42182408+jeffvli@users.noreply.github.com>
Co-authored-by: jeffvli <jeffvictorli@gmail.com>

src/renderer/components/tabs/index.tsx

@@ -42,6 +42,7 @@ const StyledTabs = styled(MantineTabs)`
 
         &:hover {
             background: none;
+            border-color: var(--primary-color);
         }
     }
 `;