Some little tweaks (old browsers / iOS 9) (#1086)

* fix config panel flex

* fix media player card not shwwing picture

* prevent toggle being compressed / pushed away

panels/config/ha-config-section.html

@@ -58,8 +58,8 @@
         <div class='intro'>
           <slot name="introduction"></slot>
         </div>
-        <div class='flex panel'>
-          <slot>
+        <div class='panel flex-auto'>
+          <slot></slot>
         </div>
       </div>
     </div>

src/cards/ha-media_player-card.html

@@ -17,8 +17,6 @@
         position: relative;
         font-size: 0px;
         border-radius: 2px;
-
-        overflow: hidden;
       }
 
       .banner {

src/components/entity/ha-entity-toggle.html

@@ -7,6 +7,7 @@
     <style>
       :host {
         white-space: nowrap;
+        min-width: 38px;
       }
       paper-icon-button {
         color: var(--paper-icon-button-inactive-color, var(--primary-text-color));