* add global code search on explore

* fix bug when no anyone public repos

* change the icon

* fix typo and add UnitTypeCode check for login non-admin user

* fix ui description when no match

* Add label descriptions

* Add default descriptions to label template

* Add separate string for the 'Create Team' button.

* Add separate string for the 'Create Team' button.

* Add a string to confirm wiki data erasure.

* Add a string to confirm wiki data erasure.

There's one for git gc, why not git fsck too?

Also add a couple more trace logs to GitFsck to see progress

* Add is_writable checkbox to deploy keys interface

* Add writable key option to deploy key form

* Add support for writable ssh keys in the interface

* Rename IsWritable to ReadOnly

* Test: create read-only and read-write deploy keys via api

* Add DeployKey access mode migration

* Update gitea sdk via govendor

* Fix deploykey migration

* Add unittests for writable deploy keys

* Move template text to locale

* Remove implicit column update

* Remove duplicate locales

* Replace ReadOnly field with IsReadOnly method

* Fix deploy_keys related integration test

* Rename v54 migration with v55

* Fix migration hell