Merge branch 'master' into toc

frontend/components/Editor/Editor.js

@@ -82,6 +82,7 @@ type KeyData = {
   };
 
   handleDrop = async (ev: SyntheticEvent) => {
+    if (this.props.readOnly) return;
     // check if this event was already handled by the Editor
     if (ev.isDefaultPrevented()) return;
 
@@ -91,7 +92,9 @@ type KeyData = {
 
     const files = getDataTransferFiles(ev);
     for (const file of files) {
-      await this.insertImageFile(file);
+      if (file.type.startsWith('image/')) {
+        await this.insertImageFile(file);
+      }
     }
   };
 
@@ -245,22 +248,6 @@ const StyledEditor = styled(Editor)`
   h5,
   h6 {
     font-weight: 500;
-
-    .anchor {
-      visibility: hidden;
-      color: #dedede;
-      padding-left: 0.25em;
-    }
-
-    &:hover {
-      .anchor {
-        visibility: visible;
-
-        &:hover {
-          color: #cdcdcd;
-        }
-      }
-    }
   }
 
   h1:first-of-type {