Initial work on tool area. Moved chat, settings and participant list into tool area.

app/resources/images/icon_tool_area_black.svg

@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="48" viewBox="0 0 24 24" width="48">
+    <path d="M0 0h24v24H0z" fill="none"/>
+    <path d="M3 18h18v-2H3v2zm0-5h18v-2H3v2zm0-7v2h18V6H3z"/>
+</svg>

app/resources/images/icon_tool_area_white.svg

@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" fill="#FFFFFF" height="48" viewBox="0 0 24 24" width="48">
+    <path d="M0 0h24v24H0z" fill="none"/>
+    <path d="M3 18h18v-2H3v2zm0-5h18v-2H3v2zm0-7v2h18V6H3z"/>
+</svg>