[accelerator] also show completed_provisional in accel dashboard

frontend/src/app/interfaces/node-api.interface.ts

@@ -411,7 +411,7 @@ export interface Acceleration {
 }
 
 export interface AccelerationHistoryParams {
-  status?: string;
+  status?: string; // Single status or comma separated list of status
   timeframe?: string;
   poolUniqueId?: number;
   blockHash?: string;