Change "Max Burst" to "Maximum Burst Size" (#4130)

* Update en.json

* Update rate_settings.jsx

* Update en.json

i18n/en.json

@@ -3117,7 +3117,7 @@
   },
   {
     "id": "model.config.is_valid.max_burst.app_error",
-    "translation": "Max burst must be greater than zero."
+    "translation": "Maximum burst size must be greater than zero."
   },
   {
     "id": "model.config.is_valid.encrypt_sql.app_error",

webapp/components/admin_console/rate_settings.jsx

@@ -105,7 +105,7 @@ export default class RateSettings extends AdminSettings {
                     label={
                         <FormattedMessage
                             id='admin.rate.maxBurst'
-                            defaultMessage='Max Burst:'
+                            defaultMessage='Maximum Burst Size:'
                         />
                     }
                     placeholder={Utils.localizeMessage('admin.rate.maxBurstExample', 'Ex "100"')}

webapp/i18n/en.json

@@ -543,7 +543,7 @@
   "admin.rate.remoteDescription": "When true, rate limit API access by IP address.",
   "admin.rate.remoteTitle": "Vary rate limit by remote address: ",
   "admin.rate.title": "Rate Limit Settings",
-  "admin.rate.maxBurst": "Max Burst:",
+  "admin.rate.maxBurst": "Maximum Burst Size:",
   "admin.rate.maxBurstExample": "Ex \"100\"",
   "admin.rate.maxBurstDescription": "Maximum number of requests allowed beyond the per second query limit.",
   "admin.recycle.button": "Recycle Database Connections",