feat(querybuilder): connect attributes by dragging them

...builder/customFlowPills/entitypill/entitypill.module.scss

...ts/querybuilder/customFlowPills/entitypill/entitypill.tsx

...der/customFlowPills/relationpill/relationpill.module.scss

...uerybuilder/customFlowPills/relationpill/relationpill.tsx

...graphpolaris/src/components/querybuilder/querybuilder.tsx

libs/querybuilder/usecases/src/index.ts

libs/querybuilder/usecases/src/lib/addPill.ts

libs/querybuilder/usecases/src/lib/attribute/checkInput.ts

.../querybuilder/usecases/src/lib/createReactFlowElements.ts

libs/querybuilder/usecases/src/lib/dragging/dragAttribute.ts

libs/querybuilder/usecases/src/lib/dragging/dragPill.ts

package.json

yarn.lock