Move variable-overrides import to top of variables
Move variable-overrides import to top of variables

Allows for overriding default variables (like $primary) without having to re-define other variables that use the customized ones.

Example: variables.sass has `$text-color: $primary !default`. variable-overrides.sass changes $primary.

Before (with the import at the bottom of the file), variable-overrides would have to assign $primary AND re-assign $text-color: $primary.

Now (with the import at the top), variable-overrides only has to assign $primary - all other default variables follow the update.

codeRIT/hackathon_manager,codeRIT/hackathon_manager,codeRIT/hackathon_manager