Large update for all components

reorganization, linting, updating file imports, consolidation
warning: there will be errors in this commit
todo: update webpack, add missing styles, scss files, consolidate the rest of components within features/*

app/javascript/gabsocial/components/zoomable_image/zoomable_image.scss

@@ -0,0 +1,13 @@
+.zoomable-image {
+  position: relative;
+
+  @include flex(center, center);
+  @include size(100%);
+
+  img {
+    object-fit: contain;
+
+    @include size(auto);
+    @include max-size($media-modal-media-max-width, $media-modal-media-max-height);
+  }
+}