[ticket/8041] Merge item name into "Return to" string for better translations

PHPBB3-8041
[ticket/8041] Wrap forum name, topic title and pm folder name with quotes

PHPBB3-8041
[ticket/8041] Add space/tabs after => in array list

PHPBB3-8041
Merge pull request #2113 from nickvergessen/ticket/8041

[ticket/8041] Merge item name into "Return to" string for better translations

* nickvergessen/ticket/8041:
  [ticket/8041] Add space/tabs after => in array list
  [ticket/8041] Wrap forum name, topic title and pm folder name with quotes
  [ticket/8041] Merge item name into "Return to" string for better translations