New Phrase Translation on the Front end needs adjustments

In In-Portal versions before 5.0.0 there was ability to translate missing
(new) phrases on Front-End just by clicking on them. Local (from current
theme) phrase adding template was used in this case. Functionality were
available only, when debug mode was turned on. After it was initially added
it became very handy and specially, in new theme development process.

Not to conflict with existing functionality, when Front-End phrases are
translated using administrative console template I propose to check, that
"admin=1" is absent in url and then build links for missing phrase
translations.