* Add oauth2 grants ui

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Add delete functionality
Add translations

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Fix unit tests

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Fix unit tests

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Refactor DeleteOAuth2Grant
Use results.Close()

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Refactor DeleteOAuth2Grant (again)

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Check if user ID is zero

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Check if grant ID is zero

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* moved avatar to profile page

* combined password change, email and account deletion into account settings page

* combined totp, access tokens, linked accounts and openid into security settings page

* move access tokens to applications settings page

* small change to restart drone build

* fix change avatar url on profile page

* redirect old settings urls to new ones

* enforce only one autofocus attribute on settings pages

* set correct redirect status code

* fmt fix

This is mostly a 'feel' change. The behaviour that is currently on the
access tokens pages is, as far as I know, not present in any other parts
of the frontend, and there's no real good reason to keep the 'Generate
New Token' panel hidden by default in my opinion.

The choice regarding which forms should or should not trigger a warning
is subjective. I tried to be consistent and not warn about forms that:
 - run an action, rather than edit data: search, send an email.
 - delete data: a warning about losing data would be confusing

Note that forms on sign-in pages were already ignored (using a selector,
rather than an explicit class on the form element).

Fixes #3698.

* refactor struct's time to remove unnecessary memory usage

* use AsTimePtr simple code

* fix tests

* fix time compare

* fix template on gpg

* use AddDuration instead of Add

* Remove point column on ssh key setting page

* Remove un-used css

* Some cleaning

* Use octicon-key

This commit improves templates readability, since all of them use consistent
indent with all template command blocks indented too.

1. Indents both HTML containers such as <div>, <p> and Go HTML template blocks
   such as {{if}} {{with}}

2. Cleans all trailing white-space

3. Adds trailing last line-break to each file

The "PHP" formatting function doesn't add anything, except an undocumented date format.

All usages in the templates have been replaced with DateFmtShort and DateFmtLong for convenience.