Fix thumbnail being obstructed by time tooltip (#2078)

* Fix thumbnail being obstructed by time tooltip

* Update src/renderer/videoJS.css

Co-authored-by: PikachuEXE <pikachuexe@gmail.com>

Co-authored-by: PikachuEXE <pikachuexe@gmail.com>

Author: 0x6e656b6f

src/renderer/videoJS.css

@@ -1023,7 +1023,7 @@ body.vjs-full-window {
   padding: 6px 8px 8px 8px;
   pointer-events: none;
   position: absolute;
-  top: -3.4em;
+  top: -2.7em;
   visibility: hidden;
   z-index: 2;
 }
@@ -2136,7 +2136,8 @@ video::-webkit-media-text-track-display {
 .video-js .vjs-vtt-thumbnail-display {
     position: absolute;
     transition: transform .1s, opacity .2s;
-    bottom: 20px;
+    /* `bottom` was 20px, to avoid obstruction by time tooltip updated to current value */
+    bottom: 56px;
     pointer-events: none;
     box-shadow: 0 0 7px rgba(0,0,0,.6);
     z-index: 3;