The save button of the edit form of Entity Schema says "Submit", which is different from other Mediawiki text editors, which say "Publish changes" or "Save changes"
Also, the button does not have a keyboard shortcut defined, unlike the respective buttons in other forms.
Acceptance criteria:
- The label of the button says "Publish changes" (publishchanges i18n message) or "Save changes" (savechanges i18n message) according to MediaWiki's EditSubmitButtonLabelPublish setting.
- The button has an accesskey="s" attribute set.