Fix bottom padding for HTML text in Wear module

[kul3r4]

Fix bottom padding for HTML text in Wear module, required changing the HTMLTextContainer which is used also on phone sample.

[gemini-code-assist]

Code Review

This pull request introduces a modifier parameter to HtmlTextContainer to allow custom styling, which is then utilized in EpisodeScreen.kt to apply vertical content padding to the episode summary paragraphs. However, a logic bug was identified in EpisodeScreen.kt where the entire summary string is passed to HtmlTextContainer instead of the individual paragraph item, which would cause the full summary to be rendered repeatedly for each paragraph.

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