Add proper support for right-to-left languages

[gmsecrieru]

For example:

[engelgabriel]

@shahar3012 can you still help us with that?

[fduraibi]

@engelgabriel What kind of help do you need?

[engelgabriel]

@fduraibi Test the system in a right-to-left language and tell us if there is anything broken o not property aligned.

[fduraibi]

Here is the result from the first test:

1- Fix direction of the user status, should be rtl instead: FIXED

.account-box .options > .wrapper {
    direction: ltr;
}

2- The markdown formatting-tips is not aligned correctly and covers the "user typing" status, should be aligned to the left side FIXED
3- Upload Icon need to be flipped FIXED
4- The text area Message should be on the right side (dir="auto" need to be changed to dir="rtl", since auto keeps it on the left even when using Arabic word instead of Message) FIXED
5- The flex-tab-bar is totally missing in Arabic interface FIXED
6- Allow using Arabic (non-English) to display names of users and rooms!! Can be done using UTF8 regex from Admin menu

[fduraibi]

7- Fix alignment of message starring: FIXED

[fduraibi]

8- Other fixes need to be done in the Administration pages, e.g. room management: FIXED

• Missing name is a bug that happened after I renamed one of the rooms. The room was created with an english name, then I enabled using Arabic characters in the UTF8 regex, renamed the room to an arabic name, it accepted the name but it disappeared! (see picture below also)
  
• This is on a fresh installed server with latest updates

[fduraibi]

All of the listed problem are fixed in #1538 or #1569

Except the last problem of missing room name, but that is more of a general bug and doesn't seem to be RTL related.

@engelgabriel I suggest closing this issue.

[engelgabriel]

Does the room name goes missing only on after renaming? If you create it properly it shows ok, right?

[engelgabriel]

Closed, and the remaining issue was created #1571