Enhances templates

* links: contain the bbcode tag/media provider title
* templates: adds/fixes template events
* bbcodeAdd.tpl: Adds titles for buttons, fixes missing space between icon and attribute title, fixes missing margin for button input fields
* language item: unifies names of error language items
Removes incorrect CSS class
Replaces "Media" with "Medium"
Improves language items
Revert change
Merge branch 'master' of github.com:WoltLab/com.woltlab.wcf.bbcode into enhancement
Fixes language item name
Adapts changes to German language items to English ones
Merge pull request #54 from Gravatronics/enhancement

Enhances templates