style(web): update view styles

- audit-view.css: update audit view styles
- requests-view.css: update requests view styles
- travel-reimbursement-create-view.css: update travel form styles
- travel-request-detail-view.css: update travel detail view styles

web/src/assets/styles/views/audit-view.css

@@ -979,23 +979,6 @@ tbody tr.spotlight {
   color: #94a3b8;
 }
 
-.modal-backdrop {
-  position: fixed;
-  inset: 0;
-  z-index: 60;
-  display: grid;
-  place-items: center;
-  padding: 24px;
-  background: rgba(15, 23, 42, 0.34);
-}
-
-.version-modal {
-  width: min(480px, 100%);
-  padding: 20px;
-  border-radius: 12px;
-  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.2);
-}
-
 .version-modal-summary {
   display: grid;
   grid-template-columns: minmax(0, 1fr) 28px minmax(0, 1fr);
@@ -1041,13 +1024,6 @@ tbody tr.spotlight {
   background: #fff;
 }
 
-.modal-actions {
-  display: flex;
-  justify-content: flex-end;
-  gap: 8px;
-  margin-top: 16px;
-}
-
 .prompt-stack {
   display: grid;
   gap: 14px;
@@ -1414,8 +1390,7 @@ tbody tr.spotlight {
     grid-template-columns: 1fr;
   }
 
-  .review-action-strip,
-  .modal-actions {
+  .review-action-strip {
     flex-direction: column;
   }