Adding or separator between ldap, username, email, github

Updating code theme name

Updating conditions for login page

updated the 2.0 Dockerfile to include the proper location of mm gzip

Fixing search loading icon on mobile

Adding or separator between ldap, username, email and github

web/react/utils/constants.jsx

@@ -267,7 +267,7 @@ export default {
             buttonColor: '#FFFFFF',
             mentionHighlightBg: '#984063',
             mentionHighlightLink: '#A4FFEB',
-            codeTheme: 'solarized_dark'
+            codeTheme: 'solarized-dark'
         },
         windows10: {
             type: 'Windows Dark',
@@ -386,11 +386,11 @@ export default {
             uiName: 'Code Theme',
             themes: [
                 {
-                    id: 'solarized_dark',
+                    id: 'solarized-dark',
                     uiName: 'Solarized Dark'
                 },
                 {
-                    id: 'solarized_light',
+                    id: 'solarized-light',
                     uiName: 'Solarized Light'
                 },
                 {