fix(docs): add header mq breakpoints

Author: hawkeye64

packages/docs/src/.q-press/layouts/MarkdownHeader.vue

@@ -393,14 +393,25 @@ $mq-list:
   470,
   510,
   600,
+  750,
   780,
+  820,
+  850,
   860,
+  900,
   910,
+  960,
+  980,
   1000,
   1020,
+  1060,
+  1080,
   1100,
   1130,
+  1140,
   1190,
+  1220,
+  1240,
   1300 /* drawer */,
   1310,
   1400;