input-forms.xml: Run through tidy

Standardize indentation and remove unneccessary white spaces using
tidy:

    tidy -xml -iq -m config/input-forms.xml

xmllint works too, but it reduces empty tags like <required></required>
to <required/>, which isn't as readable and could be confusing if
you go to modify the input forms and aren't someone who stares at
XML all day.
xmlui: Standardize colors for CCAFS buttons
xmlui: Standardize font sizes for CCAFS theme
xmlui: Standardize button colors for ILRI theme
input-forms.xml: Add BASELINE SURVEY subject focus for CCAFS
xmlui: Tweak font sizes for recent submissions

Was done earlier on ILRI and CCAFS manually, but now applied to
all with some git diff magic:

    git diff dspace/modules/xmlui/src/main/webapp/themes/IWMI/lib/css/style.css | sed s/IWMI/SLP/g | git apply

etc...