Merge branch '1104-change-contact-methods' into 'development'

See merge request !1821

Resolve "Change contact methods"

Closes #1104

See merge request !1820

(cherry picked from commit ec190fde)

f53d2777 removed direct mail option
34ed8a16 switched mail adress
695af99e Added possibility to attach files to message
5623cdd6 file upload and validation working properly
f3d30689 removed E-Mail Adresses from team website
9a9b216a replaced every mention of email adress with a link to contact form
69476f8a fixed dockerfile
8b2e8dbc attachments are now optional
ffcb7163 increased ingress body size

Development

See merge request !1816

Resolve "The content of the site is formatting the result on MG"

Closes #1031

See merge request !1814

Development

See merge request !1813

Resolve "Add interface to test adgoal responses"

Closes #1098

See merge request !1812

Development

See merge request !1811

Resolve "Translation files "es" - new"

Closes #1095

See merge request !1807

Resolve "Fix Adgoal Problems"

Closes #1097

See merge request !1810

Development

See merge request !1809

Resolve "Generate new Proxy URLs"

Closes #1096

See merge request !1808

Update resources/lang/es/asso.php, resources/lang/es/sidebar.php, resources/lang/es/spende.php files

Development

See merge request !1806

Resolve "Result saver (Sammeltab) doesn't work"

Closes #1092

See merge request !1805

Resolve "Command and Click not working"

Closes #1090

See merge request !1802

Development

See merge request !1801

Resolve "Remove Taz Logging"

Closes #1088

See merge request !1800

Resolve "Algorithm Transparency Needed"

Closes #1070

See merge request !1768

Resolve "Correction of wrong presentation of phone number in imprint"

Closes #1086

See merge request !1798

Resolve "Insert hyperlink to MetaGer on F-Droid"

Closes #1087

See merge request !1799