Keyboard Shortcuts for incontext translating

[ecstrema]

Some standard shortcuts would be great for incontext translation: namely

ctrl+enter when in the translation box to submit (equivalent to pressing update here).

Esc to exit the translation dialog. I often launch it without wanting to, because when switching pages with alt+tab, the mode gets activated and does not deactivate when releasing alt.

Having both would be great, and even better would be to fix the alt+tab problem.