Reduce script weight

# Reduce script weight by creating function
```
getter() {
  echo "Getting $1" && yay -S --noconfirm --needed "$1"
}

getter "thing"
getter "another-thing"
```
# Make script shorter
Make a lookup for each parameter in full mode `--ABC` than can be shorten with `-a`
# DRY
Search redundent lines & suppress
# finish
- Clean logs & tests
- Make logging nicer
