282 on opportunities page data pipeline + companies + people is fetched from be (#285)

* feature: get pipelines columns from backend

* feature: display item not found instead of crashing

* feature: add BoardCard component

* feature: display items from the backend

* refactor: extract useBoard in a hook

* refactor: export only loading and error from useBoard

* refactor: create var pipelineStage

* feature: implement support for Company boards

front/src/modules/opportunities/queries/index.ts

@@ -0,0 +1,19 @@
+import { gql } from '@apollo/client';
+
+export const GET_PIPELINES = gql`
+  query GetPipelines {
+    findManyPipeline(skip: 1) {
+      id
+      name
+      pipelineStages {
+        name
+        color
+        pipelineProgresses {
+          id
+          associableType
+          associableId
+        }
+      }
+    }
+  }
+`;