Smaller and faster to compile webapp builds

[abelfodil]

Observations:

• reactstrap needs bootstrap css
• we only use css (scss) from argon theme
• once compiled, the argon css also includes bootstrap
• .map files are useless for production

Conclusions:

• We can remove the argon package and only put the .css instead
• We can remove the bootstrap dependency as it's already included in the precompiled argon .css
• We can disable .map file generation for production