fix fix css bugs on app's option bar

src/component/OptionComponent/EditContent.jsx

   render () {
     return (
       <div className='d-flex align-items-center'>
-        <div className='wsContentGeneric__option__menu__action d-none d-sm-block'>
-          <i className='fa fa-archive' />
+        <div className='wsContentGeneric__option__menu__action optionicon d-none d-sm-block'>
+          <i className='fa fa-fw fa-archive' />
         </div>
-        <div className='wsContentGeneric__option__menu__action d-none d-sm-block'>
-          <i className='fa fa-trash' />
+        <div className='wsContentGeneric__option__menu__action optionicon d-none d-sm-block'>
+          <i className='fa fa-fw fa-trash' />
         </div>
       </div>
     )

src/component/OptionComponent/NewVersionBtn.jsx

   render () {
     return (
       <div
-        className='wsContentGeneric__option__menu__addversion btn btn-outline-primary mr-auto'
+        className='wsContentGeneric__option__menu__addversion newversionbtn btn btn-outline-primary mr-auto'
         onClick={this.props.onClickNewVersionBtn}
       >
         Nouvelle version

src/component/PopinFixed/PopinFixed.styl

       white-space nowrap
     &__edittitle
       margin 0 15px
+      border 1px solid transparent
+      border-radius 5px
       padding 2px 8px
       color white
       font-size 17px
       cursor pointer
       &:hover
-        border 1px solid off-white
-        border-radius 5px
+        border-color white
       .fa-pencil
         color off-white
     &__close