Recently, we reimplemented the watermarks in React. Unfortunately, we
didn't take into account film strip-only mode.

Additionally, we duplicated watermark-related source code on the Welcome
and Conference pages.

The "data-i18n-options" attribute value is stored in jQuery cache and
at the time when i18-next tries to access it to do the translation
it gets the old value from the cache and the message is not updated
correctly. Passing the "msgOptions" explicitly to "translateElement"
fixes the problem by avoiding jQuery cache.

Removing translateString forces using data-i18n attributes, to make sure we do not forget to set them. Missing data-i18n attributes is a problem with late loading where we can end up without translation, without text. Missing data-i18n attributes is also problem that strings will not be translated when changing language.
Fixes a bug in invite dialog, where remove password button was shown for non moderators.

Enable ESLint on jitsi-meet with the same configuration and the same
goals as in lib-jitsi-meet.

Renames 'videoConnectionMessage' to 'localConnectionMessage', because
it is displayed when we're having problems with our local connection
and a different one will be shown for the remote connectivity issues.

Grey filter will be applied to the remote video/avatar displayed on
"large" and a message indicating remote connectivity issues will be
shown on top of that.

The message about having connectivity issues should be displayed only
on top of the video like the "video problems filter" is.

Only the VideoContainer is interested in showing the video problems
filter which is meant to be displayed when ICE is disconnected.

It is confusing when the name of the main class exported from the file
is not the same as the filename.

VideoContainer is a separate being which implements the LargeContainer
and it's confusing to have it in the same file. This was encouraging to
access private parts of the VideoContainer directly(not through
the interface).

When link is missing disable clicking.