Left justify text in command bar and add in placeholder

[andrewtavis]

Terms

• [X] I have searched open and closed feature requests
• [X] I agree to follow Scribe-Android's Code of Conduct

Description

As of now when a user selects the Scribe key and then a command they're able to type into the command bar. The text is currently center justified, but ideally would be left justified and also include a Placeholder. See below for the current state:

As of now the placeholder can just be Placeholder: (with a space after it), and in future issues we can switch the placeholder value given the command being used. Importantly when the user deletes the placeholder should not be deleted. Furthermore, the text that the user types into the command bar should be the same color as the key texts, but the placeholder text should be a bit more grey in both cases. The colors for the placeholder can be found in Scribe-iOS at: Scribe-iOS/Scribe/Assets.xcassets/Colors/commandBarPlaceholder.colorset/Contents.json.

Contribution

This is a bit more difficult of an issue, but also great for someone with a bit of Android experience that wants to get into Scribe-Android development 😊 Happy to support and review!