Update M.E.G. hub levels' descriptions for accuracy/consistency

1. The 1.0 release levels have not been added to the M.E.G. Hub computers' database

2. The level naming scheme is inconsistent. Some levels are named by their numerical/symbolic position, e.g. Level 9 (instead of Darkened Suburbs), Level 0.2 (instead of Danger Zone), Level 52 (instead of The School Halls), and Level !~! (instead of Hotel Chase);
others are called by their colloquial name: e.g. Garage (instead of Level 1), The Poolrooms (instead of Level 37), Cave System (instead of Level 8), and Level 9 (instead of Darkened Suburbs). I'm not sure if this is also an issue with how the fandom names levels inconsistently.

3. Several levels (Level 0.2, Level !~!, and Level 55.1) have Level 0's description erroneously, and the wrong Survival Difficulty & Sanity Danger.