Downgrade and temporarily pin RxJS to 7.2.0 because of weird errors

mkdocs.yml

@@ -55,7 +55,7 @@ theme:
     # - header.autohide
     # - navigation.expand
     # - navigation.indexes
-    # - navigation.instant
+    - navigation.instant
     - navigation.sections
     - navigation.tabs
     # - navigation.tabs.sticky

package-lock.json

@@ -7436,9 +7436,9 @@
       }
     },
     "rxjs": {
-      "version": "7.3.0",
-      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-7.3.0.tgz",
-      "integrity": "sha512-p2yuGIg9S1epc3vrjKf6iVb3RCaAYjYskkO+jHIaV0IjOPlJop4UnodOoFb2xeNwlguqLYvGw1b1McillYb5Gw==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-7.2.0.tgz",
+      "integrity": "sha512-aX8w9OpKrQmiPKfT1bqETtUr9JygIz6GZ+gql8v7CijClsP0laoFUdKzxFAoWuRdSlOdU2+crss+cMf+cqMTnw==",
       "requires": {
         "tslib": "~2.1.0"
       },

package.json

@@ -42,7 +42,7 @@
     "fuzzaldrin-plus": "^0.6.0",
     "lunr": "^2.3.9",
     "lunr-languages": "^1.8.0",
-    "rxjs": "^7.3.0"
+    "rxjs": "7.2.0"
   },
   "devDependencies": {
     "@fortawesome/fontawesome-free": "^5.15.3",