Improve addressbook creation UI

[ghost]

Describe the bug

I can't create an address book

To Reproduce
Steps to reproduce the behavior:

1. I use docker version of Nextcloud
2. Install Contact App

Expected behavior
No adress book available, nothing happens when I click on "Contacts: Importing is disabled because there are no address books available"

Screenshots

Server configuration

Operating system: Linux 4.19.107-Unraid #1 SMP Thu Mar 5 13:55:57 PST 2020 x86_64

Webserver: nginx/1.18.0 (fpm-fcgi)

Database: mysql 10.4.14

PHP version:

7.3.21 Modules loaded: Core, date, libxml, pcre, zlib, filter, hash, readline, Reflection, SPL, session, cgi-fcgi, bcmath, bz2, ctype, curl, dom, fileinfo, ftp, gd, gmp, iconv, intl, json, ldap, mbstring, openssl, pcntl, PDO, pgsql, posix, standard, SimpleXML, smbclient, sodium, sqlite3, xml, xmlwriter, zip, exif, imap, mysqlnd, pdo_pgsql, pdo_sqlite, Phar, xmlreader, pdo_mysql, apcu, igbinary, redis, memcached, imagick, mcrypt, libsmbclient, Zend OPcache

Nextcloud version: 19.0.1 - 19.0.1.1

[ghost]

For me the right arrow isn’t very representative. I thin it was a search field, not a « create » field.

[skjnldsv]

@jancborchardt what about another settings in the bottom for address books?
I feel it would be much easier to understand :)

• Separate settings from address books
• Better enable/disable visual cue
• Easier to find
• Maybe we could also add a star or something to define an AB as default Make it possible to set default address book for new contacts #1767

[skjnldsv]

So, I actually found #1703
Which is pretty close to this, let's discuss it there.