Design Grant Round Countdown

### User Story

When I want to participate in a Gitcoin Grant round, I want to know how much time up until the round starts so that I can come back and participate.

### Why Is this Needed

[comment]: # (Describe the problem and why this task is needed. Provide description of the current state, what you would like to happen, and what actually happen)
*Summary*:

### Description

[comment]: # (Feature or Bug? i.e Type: Bug)
*Type*: Feature

### Current Behavior
Does not exist

### Expected Behavior

Display graphic when GR10 starts (perhaps with even a count down on it)?

### Definition of Done

A design is created with specs
Reviewed by pm and engineer

### Data Requirements
[comment]: # (How will we measure the success of this feature? What kind of tracking is needed for this feature (clicks, impressions, flag)?)

### Additional Information
[comment]: # (Any other information that would be useful, content, screenshots, etc.)