fixes #11473 - remove re-init of domain select2 on env selection

After an environment was selected, the reloadOnAjaxComplete function
re-initialised every select2, but other dropdowns triggered
onContentLoad which excluded those with the without_select class....

Fixes #10929 - Add removed widgets to dashboard

This commit allows users to re-add widgets. At this point it's only
possible to recover removed widgets by clicking on "Reset to default".

To do this I populate the 'Add widgets' list by getting a diff
between the current widgets and the available ones. The code calls any...

Fixes #9293 - Organization/location menu closes correctly

(cherry picked from commit e12b30751f50f294e0fb7f7e9f8aad3fe98d35e2)

i18n - extracting new, updating rails, pulling from tx

i18n - extracting new, updating rails, pulling from tx

fixes #11172 - disable select2 with css class (and enable elsewhere)

(cherry picked from commit 83344af2cc49563e3f1e79ae12f9112d0d2618b6)

fixes #11171 - compute profiles nics & volumes select2 are initiated separately

(cherry picked from commit 052d58199494eb5e1eaac9fdbcac76c2d2bb4fb7)

Fixes #11035 - template preview feature

(cherry picked from commit de9e7adaa579db01d043d6a04a83c946a3d33850)

i18n - extracting new, updating rails, pulling from tx

fixes #10985 - Set css class for width of filter select on Puppet CA index

(cherry picked from commit befd67161264bdea077ef58bffd516a041cb20fe)