Smart Refill Tank does not refill autoinjectors

## Testmerges
#9894: 'Multiz indicator' by Detective-Google at commit 5dbc10a0d2
#10340: 'New on_mobs for splints, bandages and blood overlays (Other changes to blood included)' by LC4492 at commit 14a671a4e4
#10830: 'cm-live' by hry-gh at commit 5445fa1183
#10895: 'Moves SDTimeAward out of staff ranks.' by realforest2001 at commit c7aee3b53b
#10872: '[RM] Temporary Multi-Z Roof Layer' by thwompa at commit c79de64107
#10883: 'Blocks tiles you cannot view while looking up' by Git-Nivrak at commit e83e2d8d9e
#10908: 'Disables pouncing up a z level' by Git-Nivrak at commit e2b48b63cd
#10375: 'Corporate Bodyguard' by realforest2001 at commit c2e5d3bcf6

## Round ID
30496

## Description of the bug
Smart Refill Tank does not refill autoinjectors unless there is enough reagents for a full autoinjector.

## What's the difference with what should have happened?
Smart Tank should refill autoinjector if there is enough reagents for at least 1 use.

## How do we reproduce this bug?
E.g Inaprovaline
1)Use inaprovaline injector once (one use is 30u)
2)Fill in Smart Refill Tank with a bottle of inaprovaline from vendor (60u) [anything less then 90u works for reproduction]
3)Try to refill the autoinjector from smart refill tank

## Attached logs
```
N/A
```

## Additional details
- Author: Labeo0
- Admin: Hermotimos
- Note: None