Fix a whole bunch of eslint errors

These apparently were silent until 92c532d mass-upgraded deps.
Apparently eslint returned status 0 despite errors before and now
returns 1.

Most of these were handled by its "--fix" option; I manually took care
of the remaining two:

/Users/slamb/git/moonfire-nvr/ui-src/lib/views/RecordingsView.js
  140:1  error  This line has a length of 82. Maximum allowed is 80  max-len

/Users/slamb/git/moonfire-nvr/ui-src/lib/views/StreamSelectorView.js
  72:1  error  This line has a length of 82. Maximum allowed is 80  max-len

ui-src/lib/models/CalendarTSRange.js

@@ -138,9 +138,9 @@ export default class CalendarTSRange {
    * @return {Range90k} Range object or null if don't have start and end
    */
   range90k() {
-    return this.hasRange()
-      ? new Range90k(this.startTime90k, this.endTime90k)
-      : null;
+    return this.hasRange() ?
+      new Range90k(this.startTime90k, this.endTime90k) :
+      null;
   }
 
   /**
@@ -167,9 +167,9 @@ export default class CalendarTSRange {
    */
   _setRangeTime(range, dateStr, timeStr, dateOnlyThenEndOfDay) {
     const newTs90k = this._timeParser.parseDateTime90k(
-      dateStr,
-      timeStr,
-      dateOnlyThenEndOfDay
+        dateStr,
+        timeStr,
+        dateOnlyThenEndOfDay
     );
     if (newTs90k !== null) {
       range.dateStr = dateStr;