Frontent dev env (#247)

* Added frontend development files/environment

* More items-categories related removals

* Improvements in pages templates (inc. static pages)

* Improvements in video player

* Added empty home page message + cta

* Updates in media, playlist and management pages

* Improvements in material icons font loading

* Replaced media & playlists links in frontend dev-env

* frontend package version update

* chnaged frontend dev url port

* static files update

* Changed default position of theme switcher

* enabled frontend docker container

frontend/config/templates/static/editChannelPage.html

@@ -0,0 +1,30 @@
+<div id="app-header"></div>
+<div id="app-sidebar"></div>
+<div class="page-main-wrap">
+  <div class="page-main">
+    <div class="page-main-inner">
+      <div class="user-action-form-wrap">
+        <div class="user-action-form-inner">
+          <h1>Edit Channel</h1>
+
+          <form enctype="multipart/form-data" action="" method="post" class="post-form">
+            <div id="div_id_banner_logo" class="control-group">
+              <label for="id_banner_logo" class="control-label"> Banner logo </label>
+              <div class="controls">
+                Currently: <a href="#">*****</a>
+                <input type="checkbox" name="banner_logo-clear" id="banner_logo-clear_id" />
+                <label for="banner_logo-clear_id">Clear</label><br />
+                Change:
+                <input type="file" name="banner_logo" accept="image/*" class="clearablefileinput" id="id_banner_logo" />
+              </div>
+            </div>
+
+            <button class="primaryAction" type="submit">Update Channel</button>
+          </form>
+        </div>
+      </div>
+    </div>
+    <div class="page-sidebar-content-overlay"></div>
+  </div>
+</div>
+<div id="app-footer"></div>