Add an operation to get details for updating a video

Fixes railbird/railbird#1164

src/operations/video.gql

@@ -4,7 +4,6 @@ query GetStreamMonitoringDetails($videoId: Int!) {
     totalShots
     makePercentage
     elapsedTime
-
     stream {
       homographyHistory {
         crop {
@@ -53,6 +52,22 @@ query GetStreamMonitoringDetails($videoId: Int!) {
   }
 }
 
+query GetVideoUpdatePageDetails($videoId: Int!) {
+  getVideo(videoId: $videoId) {
+    id
+    name
+    totalShots
+    makePercentage
+    elapsedTime
+    tags {
+      tagClasses {
+        name
+      }
+      name
+    }
+  }
+}
+
 mutation DeleteVideo($videoId: Int!) {
   deleteVideo(videoId: $videoId)
 }