* Fixed login incentives header
* Added achievement hover
* Removed grassy background from editing modal
* Fixed loading of other user equipment
* Prevented non admins from using habitica official
* Fixed challenge loading and leader changing on group reload
* Added community guidlines link
* Added challenge cloning
* Fixed heroes editing
* create new summary field for challenges
* finish implementating summary for challenges, add some support for guilds
* make small improvements to challenges code
* fix lint errors
* add more code to support summaries for guilds (still more needed)
* fix existing tests by adding summary field
* make existing tests pass
* WIP make "Public Challenges" text translatable
* change "leader" locale key to "guildOrPartyLeader" to make searches for it easier
* remove v-once from h2 headings
* remove failed attempt to localise text in <script>
* add quick-and-dirty error checking for guild not having categories
* make "Public Challenges" text translatable
* rename final ...PlaceHolder strings to ...Placeholder (lower-case "h") for consistency with existing Placeholder strings
* Added image
* Added new achievement to user schema
* Added new achievement to content
* Added new achievement to libs
* Added achievement text to locale
* Added achievement to notification model and controller
* Grant achievement on joining or creating first challenge
* Added achievement to modal template
* Compiled new sprites
* Added integration tests
* Fix linting error
