fix container size

like in castellum

scheduler/main/static/style.css

+.container {
+    max-width: var(--breakpoint-md, 768px);
+}
+
 .full-width {
-    width: 100vw;
-    position: relative;
-    left: 50%;
-    right: 50%;
-    margin-left: -50vw;
-    margin-right: -50vw;
     overflow-x: auto;
 }
-.full-width > * {
-    width: 100%;
-    margin: 0 auto;
-}
-@media (min-width: 576px) {
-    .full-width > * {
-        width: auto;
-        min-width: 510px
-    }
-}
+
 @media (min-width: 768px) {
-    .full-width > * {
-        min-width: 690px
-    }
-}
-@media (min-width: 992px) {
-    .full-width > * {
-        min-width: 930px
+    .full-width {
+        width: 100vw;
+        position: relative;
+        left: 50%;
+        right: 50%;
+        margin-left: -50vw;
+        margin-right: -50vw;
     }
-}
-@media (min-width: 1200px) {
     .full-width > * {
-        min-width: 1110px
+        width: auto;
+        min-width: 738px;  /* 768px - 2 * 15px (padding) */
+        margin: 0 auto;
     }
 }