mark all entries in codex as viewed

Description

The user interface features a button labeled "Mark All Entries Viewed." This label clearly indicates its functionality, allowing users to mark all entries as having been reviewed or seen. The design employs a rectangular shape with rounded edges, giving it a modern and accessible appearance.

The color scheme features contrasting text color against a blue background, enhancing readability. The button likely serves as a primary action item, encouraging users to engage with it to streamline their workflow or manage entries efficiently. Its simple yet functional design promotes easy interaction, which is crucial for user experience.