use common/utils/singleton class for the stores

Signed-off-by: Roman <ixrock@gmail.com>

src/renderer/_vue/store/modules/clusters.ts

@@ -217,7 +217,7 @@ const actions: ActionTree<ClusterState, any>  = {
     })
   },
   storeCluster({commit}, cluster: ClusterInfo) {
-    clusterStore.storeCluster(cluster);
+    clusterStore.saveCluster(cluster);
     commit("updateCluster", cluster)
     promiseIpc.send("clusterStored", cluster.id)
   }

src/renderer/_vue/store/modules/workspaces.ts

@@ -27,11 +27,11 @@ const mutations: MutationTree<WorkspaceState> = {
     state.currentWorkspace = workspace
   },
   addWorkspace(state, workspace: WorkspaceData) {
-    workspaceStore.storeWorkspace(workspace)
+    workspaceStore.saveWorkspace(workspace)
     state.workspaces = workspaceStore.getAllWorkspaces()
   },
   updateWorkspace(state, workspace: WorkspaceData) {
-    workspaceStore.storeWorkspace(workspace)
+    workspaceStore.saveWorkspace(workspace)
     state.workspaces = workspaceStore.getAllWorkspaces()
   },
   removeWorkspace(state, workspace: Workspace) {