This makes it easier for user who want to theme but
don't have the ability to know how to customize templates
all that is required is a change in a config option

The reason why I chose the DEFAULT_THEME as variable,
as perhaps in the future we will allow users to chose their
theme whon logged in just like we do with languages

* LFS: make HTTP auth period configurable

* Formatting: Removed semicolon

Due to automated fmt-check failure (drone.gitea.io)

* applying code reviews

* Applied code review comment: Change HTTPAuthExpiry to time.Duration

* Updated config cheat sheet

* fix attachment ENABLED

* change wrong name on app.ini.sample

* add i18n section in config cheat sheet, reordered app.ini.sample

* fix wrong default config

Update the sample configuration and config cheat sheet description for
the LOCAL_ROOT_URL configuration variable to mention the special case
required if PROTOCOL is set to 'unix'.

Fixes #3741.

Signed-off-by: Timothée Ravier <tim@siosm.fr>

* Add support for U2F

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

* Add vendor library
Add missing translations

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

* Minor improvements

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

* Add U2F support for Firefox, Chrome (Android) by introducing a custom JS library
Add U2F error handling

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

* Add U2F login page to OAuth

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

* Move U2F user settings to a separate file

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

* Add unit tests for u2f model
Renamed u2f table name

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

* Fix problems caused by refactoring

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

* Add U2F documentation

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

* Remove not needed console.log-s

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

* Add default values to app.ini.sample
Add FIDO U2F to comparison

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

* Fix some comments in custom/conf/app.ini.sample

Some comments in app.ini.sample were very vague, didn't contain much information.
Some of them have been fixed, but mistakes that need to be fixed by an expert still remain, see #3928

Signed-off-by: Mikolaj Holysz <miki123211@gmail.com>

* Add an additional comment pointing to more documentation.

Add an additional comment to the top of the sample configuration file.
It contains a link pointing to gitea's docs and the configcheat sheet, which contains
some explanations about the parameters in the config.

Signed-off-by: Mikolaj Holysz <miki123211@gmail.com>

* add config option to enable or disable log executed SQL

* rename ShowSQL to LogSQL

* Add an option to allow redirect of http port 80 to https.

This is an "opt in" option (default is to not redirect).  It will only redirect
if protocol is https and the new REDIRECT_PORT_80 option is set to true.

The Port to redirect in previous commit was hardcoded to 80, now it can be
specified in the app.ini, defaulting to 80.  The boolean option to turn
redirection on has been changed to REDIRECT_OTHER_PORT to be logically
consistent with the new port option.

Signed-off-by: Mike Fellows <mike.fellows@shaw.ca>

* support default private when creating or migrating repository

* fix fmt

* use string constants on repository default private in app.ini

* fix fmt

Include defaults in cheat sheet, for that section

This makes the spacing consistent across all options.

Signed-off-by: Patrick Lühne <patrick-github@luehne.de>