[REQUEST] Snap windows, rename labels, unit change, # of decimal digits

[Falki-git]

https://discord.com/channels/1078696971088433153/1080340366995239004/1091808070855831612

• [x] Snap windows to each other

• [x] Click labels to edit/rename Ex) Horizontal Vel. → Velocity (H)

• [x] Click units to change it Ex) m → km → Mm → Gm

• [x] Click values to change # of decimal digits to display Ex) 100.012 → 100.01 → 100.0
  ... can maintain alignment with other values by leaving an empty space for each digit not shown

[Falki-git]

Partially fulfilled in https://github.com/Micrologist/MicroEngineer/pull/23 (unit change, # of decimal digits)

[Falki-git]

Fully filfilled with https://github.com/Micrologist/MicroEngineer/pull/28 (snapping, renaming)