Revert "js: Set eslint to ecmascript 2020"

This reverts commit 86e2573c39.
Breaks stuff with QtWebKit, whoops...

qutebrowser/javascript/.eslintrc.yaml

@@ -14,9 +14,6 @@ env:
     browser: true
     es6: true
 
-parserOptions:
-    ecmaVersion: 2020
-
 extends:
     "eslint:all"
 
@@ -66,4 +63,3 @@ rules:
     no-negated-condition: "off"
     no-console: "off"
     sort-vars: "off"
-    no-continue: "off"

qutebrowser/javascript/caret.js

@@ -1129,7 +1129,7 @@ window._qutebrowser.caret = (function() {
         const sel = window.getSelection();
         sel.setBaseAndExtent(
             sel.extentNode, sel.extentOffset, sel.baseNode,
-            sel.baseOffset,
+            sel.baseOffset
         );
     };
 

qutebrowser/javascript/history.js

@@ -163,7 +163,7 @@ window.loadHistory = (function() {
             // python's time.time returns seconds, but js Date expects ms
             const currentItemDate = new Date(item.time * 1000);
             getSessionNode(currentItemDate).appendChild(makeHistoryRow(
-                item.url, item.title, currentItemDate.toLocaleTimeString(),
+                item.url, item.title, currentItemDate.toLocaleTimeString()
             ));
             lastItemDate = currentItemDate;
             if (item.time === nextTime) {

qutebrowser/javascript/quirks/array_at.user.js

@@ -52,7 +52,7 @@ SOFTWARE.
                 "writable": true,
                 "enumerable": false,
                 "configurable": true,
-            },
+            }
         );
     }
 })();

qutebrowser/javascript/scroll.js

@@ -15,13 +15,13 @@ window._qutebrowser.scroll = (function() {
             document.body.scrollWidth,
             document.body.offsetWidth,
             document.documentElement.scrollWidth,
-            document.documentElement.offsetWidth,
+            document.documentElement.offsetWidth
         );
         const height = Math.max(
             document.body.scrollHeight,
             document.body.offsetHeight,
             document.documentElement.scrollHeight,
-            document.documentElement.offsetHeight,
+            document.documentElement.offsetHeight
         );
 
         if (x !== undefined) {

qutebrowser/javascript/webelem.js

@@ -122,7 +122,7 @@ window._qutebrowser.webelem = (function() {
         for (let k = 0; k < client_rects.length; ++k) {
             const rect = client_rects[k];
             out.rects.push(
-                add_offset_rect(rect, frame_offset_rect),
+                add_offset_rect(rect, frame_offset_rect)
             );
         }