Wear Now Playing Chip can have low contrast for episode name text

### Description

Depending on the artwork for the episode, the Now Playing chip on the watch can have pretty low contrast for the episode name text, making it difficult to read.

### Step-by-step reproduction instructions

1. Start playing an episode from the "Alphabet Boys" podcast
2. Look at the Now Playing chip on the watch

### Screenshots or screen recording


### Did you search for existing bug reports?

- [X] I have searched for existing bug reports.

### Device, Operating system, and Pocket Casts app version

watch emulator running 7.39 pre-release build.

Start by reproducing the issue on the watch emulator with the "Alphabet Boys" episode and inspect the Now Playing chip where the episode name is rendered over artwork. Done means the episode name remains readable with sufficient contrast across the artwork shown in the report.

Written by the indexing model from the issue text.