feat: add confirmation

[Cyber-Syntax]

Confirmation (good-to-have)

my-unicorn install qownnotes appflowy
resolving package operations...

AppImage (2)        New Version  Net Change

qownnotes           3.5.1-1.1      0,48 MiB
appflowy            3.5.1-1.1      0,48 MiB

Total Installed Size:  0,96 MiB

:: Proceed with installation? [Y/n] y

my-unicorn remove qownnotes
resolving package operations...

AppImage (1)  Old Version  Net Change

qownnotes     1.0.0        -0,48 MiB

Total Removed Size:  0,48 MiB

:: Do you want to remove these packages? [Y/n] y