fix modals, tooltips and tabs

evap/contributor/templates/contributor_evaluation_form.html

evap/contributor/templates/contributor_index.html

evap/evaluation/templates/base.html

evap/evaluation/templates/confirmation_modal.html

evap/evaluation/templates/confirmation_text_modal.html

evap/evaluation/templates/contact_modal.html

evap/staff/templates/staff_evaluation_textanswers_quick.html

evap/staff/templates/staff_semester_view.html

evap/static/scss/components/_grid.scss

evap/student/templates/student_vote_questionnaire_group.html