feat: Added ability to disable sharing at collection (#1875)

* feat: Added ability to disable sharing at collection

* fix: Disable all previous share links when disabling collection share
Language

* fix: Disable document sharing for read-only collection members

* wip

* test

* fix: Clear policies after updating sharing settings

* chore: Less ambiguous language

* feat: Allow setting sharing choice on collection creation

server/models/Collection.js

@@ -24,6 +24,11 @@ const Collection = sequelize.define(
     private: DataTypes.BOOLEAN,
     maintainerApprovalRequired: DataTypes.BOOLEAN,
     documentStructure: DataTypes.JSONB,
+    sharing: {
+      type: DataTypes.BOOLEAN,
+      allowNull: false,
+      defaultValue: true,
+    },
     sort: {
       type: DataTypes.JSONB,
       validate: {