Instagram fixes

What's Changed

• [BUGFIX] Fix issue with not being able to fetch Instagram business account ID by @MattiasNilsson in #122
• [BUGFIX] Make sure that Instagram images are displayed in frontend by @MattiasNilsson in #123
• [RELEASE] Prepare for version ''3.1.3'' by @MattiasNilsson in #124

Full Changelog: 3.1.2...3.1.3