UI Improvements

No big updates this month (some are coming soon). However, small UI improvements were made throughout the application, especially for engagements.

- Adding monsters for encounters / combat evaluations now requires fewer windows / clicks, additional "duplicate" buttons for user convenience, and quick ways to send combat evaluations into encounters.

- Sorting now gracefully handles fractions (for example sorting by challenge rating puts a "1/4 CR" ahead of "1/2 CR").

- Fixed some UI glitches as well when editing assets or using the name generator.