Fix AppArmor rule denying access to fontawesome-webfont.svg
Fix AppArmor rule denying access to fontawesome-webfont.svg

Apache should have access to fontawesome-webfont.svg. If AppArmor
denies access, a spurious OSSEC alert will be produced.

Reported by @KwadroNaut in #2075

ehartsuyker/securedrop,conorsch/securedrop,heartsucker/securedrop,garrettr/securedrop,garrettr/securedrop,ehartsuyker/securedrop,micahflee/securedrop,conorsch/securedrop,micahflee/securedrop,ehartsuyker/securedrop,heartsucker/securedrop,conorsch/securedrop,micahflee/securedrop,garrettr/securedrop,ehartsuyker/securedrop,conorsch/securedrop,ehartsuyker/securedrop,garrettr/securedrop,micahflee/securedrop,heartsucker/securedrop,conorsch/securedrop,ehartsuyker/securedrop,heartsucker/securedrop,heartsucker/securedrop