Long strings (commit_message) appear with CODE button

[smola]

Long strings, such as those that appear with the commit_message column are displayed with the CODE button, which is quite confusing.

[carlosms]

There was a proposal to rename it to 'VIEW', but it was decided to keep it as 'CODE'.
https://github.com/src-d/product/issues/264#issuecomment-397665044

[carlosms]

@src-d/product is there any chace we can reconsider this, and rename 'CODE' to 'VIEW'?
As @smola found, the text viewer somethings contains code, but not always.