Updated UI for perks. extracted properties to styles

[carvalho2707]

What does this PR do?

This PR introduces some fixes to UI elements in promotions. Changed future promotion icon, updated card elevation and letter spacing

Database changed?

Yes | No

Where should the reviewer start?

• [ ] Foo.java
• [ ] Foo.kt

How should this be manually tested?

Flow on how to test this or QA Tickets related to this use-case: [MOB-XXXX](https://aptoide.atlassian.net/browse/MOB-)

What are the relevant tickets?

Tickets related to this pull-request: [MOB-XXXX](https://aptoide.atlassian.net/browse/MOB-)

Questions:

Does this add new dependencies which need to be added? (Eg. new libs, new keys, etc.)

Code Review Checklist

• [ ] Architecture
• [ ] Documentation on public interfaces
• [ ] Database changed?
• [ ] If yes - Database migration?
• [ ] Remove comments & unused code & forgotten testing Logs
• [ ] Codestyle
• [ ] Functional QA tests pass