Enh #106 : Add an autoPlayVideo user attribute (#159)

Warning : I was not able to run the tests on my machine. It uses a different approach to handle databse connexion and didn't find where to configure it...

- create a migration file to add a boolean column in user table
- add autoPlayVideo attribute everywhere it is needed (both on client and server side)
- add tests
- add a way to configure this attribute in account-settings
- use the attribute in video-watch component to actually autoplay or not the video

server/helpers/custom-validators/users.ts

@@ -21,10 +21,18 @@ function isUserUsernameValid (value: string) {
   return exists(value) && validator.matches(value, new RegExp(`^[a-z0-9._]{${min},${max}}$`))
 }
 
-function isUserDisplayNSFWValid (value: any) {
+function isBoolean (value: any) {
   return typeof value === 'boolean' || (typeof value === 'string' && validator.isBoolean(value))
 }
 
+function isUserDisplayNSFWValid (value: any) {
+  return isBoolean(value)
+}
+
+function isUserAutoPlayVideoValid (value: any) {
+  return isBoolean(value)
+}
+
 function isUserRoleValid (value: any) {
   return exists(value) && validator.isInt('' + value) && UserRole[value] !== undefined
 }
@@ -36,5 +44,6 @@ export {
   isUserRoleValid,
   isUserVideoQuotaValid,
   isUserUsernameValid,
-  isUserDisplayNSFWValid
+  isUserDisplayNSFWValid,
+  isUserAutoPlayVideoValid
 }