chore(docs): Fixes typo, adds line breaks in Jetcaster README

[telpirion]

This PR fixes a small typo (inserts hyphen into "full-featured") and inserts line breaks into the Jetcaster README.

[gemini-code-assist]

Summary of Changes

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This pull request focuses on refining the documentation for the Jetcaster sample application. It addresses a small grammatical correction and enhances the visual presentation of the README file, making it easier to read and understand for anyone reviewing the project's overview.

Highlights

• Documentation Improvement: Corrected a minor typo in the Jetcaster README.md file, specifically hyphenating 'full-featured' for grammatical accuracy.
• Readability Enhancement: Introduced additional line breaks within the Jetcaster README.md to improve its overall readability and formatting.

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[gemini-code-assist]

Code Review

This pull request fixes a typo and improves the readability of the Jetcaster README by adding line breaks. I've provided one suggestion to make the line wrapping more consistent, which is a common convention for markdown files that further enhances source readability. Overall, this is a good documentation update.

[gemini-code-assist]

While adding line breaks improves readability, the wrapping could be more consistent. A common practice for markdown files is to wrap lines at around 80 characters to improve source readability. For example, this paragraph has lines of varying lengths, with one being almost 100 characters long. Consider re-wrapping for consistency throughout the file.

Suggested change

	Set your device to dark theme when trying out Jetcaster. This app features a dark theme as the
	primary theme of the app, since contextually media apps benefit greatly from dark themes. It also
	shows that contrast and expressive design can still be honored with dark themes.
	Set your device to dark theme when trying out Jetcaster. This app features a dark
	theme as the primary theme of the app, since contextually media apps benefit
	greatly from dark themes. It also shows that contrast and expressive design can
	still be honored with dark themes.