[feature] Add first iteration of a user panel at /user (#736)

* start work on user panel

* parse source first before checking if empty form

* newline

* set avi + header nicely

* add posts settings

* render signin a bit nicer on mobile

* return OK json on successful change

* return unauthorized on bad password

* clarify message on insecure password

* make login a bit prettier

* add alt text + border round image previews

* add logout button

* add password change

* styling updates

* redirect /auth/edit to /user

* update tests

* fix validation tests

* better labels, link to more info

* make submit button generic component

* move submit button inside forms

* add autocomplete labels to password fields

* fix indentation (thx eslint)

* update eslintrc

* eslint: no-unescaped-entities

* initial deduplication between user and admin panel

* add default status/post format setting

* user panel styling for inputs

* update user panel styling, include normalize css

* add placeholder text

* input padding

Co-authored-by: f0x <f0x@cthu.lu>

web/source/.eslintrc.js

@@ -1,3 +1,8 @@
+"use strict";
+
 module.exports = {
-	"extends": ["@f0x52/eslint-config-react"]
-};
+	"extends": ["@f0x52/eslint-config-react"],
+	"rules": {
+		"react/prop-types": "off"
+	}
+};