decrease size of input boxes in campaign budget UI

[Vladimir Venediktov]

It expanded too wide on the screen we need to make it smaller , ID should be no more then 4 digits
to hold up to 9999 campaigns by default and should be able to expand automatically if the number
of campaigns grows beyond 9999.

[Vladimir Venediktov]

@surakhchin when you write some comments in the pull request , you can just insert #46 in the text and
when we merge it should automatically close this issue.