added color management for create popup

src/container/PopupCreateThread.jsx

     label: 'Thread',
     slug: 'thread',
     faIcon: 'file-text-o',
-    hexcolor: '#3f52e3',
+    hexcolor: '#ad4cf9',
     creationLabel: 'Write a thread',
     domContainer: 'appContainer',
     apiUrl: 'http://localhost:3001',
     }
   },
   loggedUser: {
-    id: 5,
+    id: 1,
     username: 'Smoi',
     firstname: 'Côme',
     lastname: 'Stoilenom',
         onClose={this.handleClose}
         onValidate={this.handleValidate}
         label={this.state.config.label} // @TODO get the lang of user
-        hexcolor={this.state.config.hexcolor}
+        customColor={this.state.config.hexcolor}
         faIcon={this.state.config.faIcon}
         contentName={this.state.newContentName}
         onChangeContentName={this.handleChangeNewContentName}

src/container/Thread.jsx

             onClickValidateNewCommentBtn={this.handleClickValidateNewCommentBtn}
             onClickWysiwygBtn={this.handleToggleWysiwyg}
             onClickRevisionBtn={() => {}}
-            shouldScrollToBottom={false}
+            shouldScrollToBottom
             showHeader={false}
           />
         </PopinFixedContent>

src/css/index.styl

 @import "../../node_modules/tracim_lib/src/css/Variable.styl"
 
 .thread
-  width 1100px
+  width 70%
   &__header
     &__editionmode
       display none
       &__texteditor
         flex 0 0 auto
 
-@media (min-width: min-lg) and (max-width: max-lg)
-  .wsContentThread
-    width 900px
-
-@media (min-width: min-md) and (max-width: max-md)
-  .wsContentThread
-    width 700px
-
 @media (min-width: min-sm) and (max-width: max-sm)
-  .wsContentThread
-    top 69px
-    width 500px
+  .thread
+    top 68px
+    width 100%
 
 @media (max-width: max-xs)
-  .wsContentThread
-    top 69px
+  .thread
+    top 68px
     width 100%
-    box-shadow none
-    z-index 1

src/helper.js

     }]
   },
   loggedUser: { // @FIXME this object is outdated
-    user_id: 5,
+    user_id: 1,
     username: 'Smoi',
     firstname: 'Côme',
     lastname: 'Stoilenom',