fix text overflow in announcement、problem and submission_details

src/pages/oj/components/Panel.vue

@@ -6,7 +6,9 @@
     <div slot="extra" class="panel-extra">
       <slot name="extra"></slot>
     </div>
-    <slot></slot>
+    <div class="panel-body">
+      <slot></slot>
+    </div>
   </Card>
 </template>
 
@@ -59,4 +61,8 @@
       }
     }
   }
+  .panel-body {
+    word-break: break-all;
+    word-wrap: break-word;
+  }
 </style>

src/pages/oj/views/problem/ProblemList.vue

@@ -99,7 +99,7 @@
                 style: {
                   padding: '2px 0'
                 }
-              }, params.row.title)
+              }, params.row._id)
             }
           },
           {

src/pages/oj/views/submission/SubmissionDetails.vue

@@ -158,6 +158,11 @@
       span {
         margin-right: 10px;
       }
+      pre {
+        white-space: pre-wrap;
+        word-wrap: break-word;
+        word-break: break-all;
+      }
     }
   }