set init settings for languages + fixes

codeeditor-app/app.less

@@ -1,4 +1,5 @@
 @import url('../shared/theme.less');
+@import url('../shared/flex.less');
 
 html, body {
     margin: 0;
@@ -9,18 +10,6 @@ html, body {
 }
 
 
-.flex-horiz {
-    display: flex;
-    flex-direction: row;
-    height: 100%;
-    overflow: hidden;
-}
-
-.flex-vert {
-    display: flex;
-    flex-direction: column;
-    height: 100%;
-}
 
 .flex-horiz > * {
     min-height: auto !important;
@@ -33,37 +22,10 @@ html, body {
 }
 
 
-.flex-horiz > *, .flex-vert > * {
-    flex-grow: 1;
-    flex-shrink: 1;
-    flex-basis: 1px;
-    position: relative;
-}
-
 .animate .flex-horiz > *, .animate .flex-vert > * {
     transition: all 280ms ease-in-out;
 }
 
-.flex-horiz .flex-shrink, .flex-vert .flex-shrink {
-    flex-grow: 0;
-    flex-shrink: 1;
-}
-
-.flex-horiz .flex-grow, .flex-vert .flex-grow {
-    flex-grow: 1;
-    flex-shrink: 0;
-}
-
-.flex-reset {
-    position: absolute;
-    top: 0;
-    bottom: 0;
-    left: 0;
-    right: 0;
-    width: 100%;
-    height: 100%;
-}
-
 body {
     font-family: @primary-font-family;
 }