JS issues

[ewlarson]

• [ ] GBL Admin / "Notifications (x)" feature isn't automatically updating
• [x] Geoportal / Results placemarkers not showing
• [x] GBL Admin / Document#new multiple value attrs
• [x] Geoportal / Result item show page pagination
• [x] Map tiles not loading properly / https://geodev.btaa.org/catalog/5d6ae8f7-061a-486c-97d2-a52d308dda57
• [x] Fix TMS viewer
• [x] Add TileJSON viewer
• [x] Add WMTS viewer
• [x] Add XYZ viewer