[Glitch] Bump react-redux-loading-bar from 4.0.8 to 5.0.4

Port d5ca204e89 to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/styles/components/index.scss

@@ -442,10 +442,14 @@
     object-fit: contain;
   }
 
-  .loading-bar {
+  .loading-bar__container {
     position: relative;
   }
 
+  .loading-bar {
+    position: absolute;
+  }
+
   &.image-loader--amorphous .image-loader__preview-canvas {
     display: none;
   }