Attempt Tags #129
Description
Many other cubing timers allow for creating custom "categories", e.g. named subsections under 3x3x3. Speedcuber Timer handles many of the most common use cases for those categories by having a wide variety of events built-in.
However, there may be reasons why someone would want additional sub-filtering, so I propose adding a tagging system. Essentially, users can add a set of tags that will apply to every solve until changed, and then support filtering by those tags on the attempts list and the insights charts.