[FIX] Balance overview: Make currency font clearer

RT-2270 #inreview
In the "XRP - Ripple" text (and in "Bitcoin" too), the lowercase "i"
looked like an uppercase "I", due to bad font rendering with the bold
font. Increase the font size a bit to make the i-dot clear.
[TASK] Balance overview: Use ndash for currency

In the Balance overview, native "XRP - Ripple" currency title, the dash
was a normal minus sign. Using an ndash (ASCII 150) looks better.
[FIX] Send: Add spacing for destination tag hider

RT-2378 #inreview
On the Send tab, the Destination tag has a hide-link behind. Instead of
separating it with a pipe, use spacing instead.
[TASK] L10n: Update messages.pot template
[FIX] Trustline: Fix notifications when deleting trustline
[TASK] Trade: Clearer copy when order is filled on market order
[TASK] Balance overview: Use px unit for font size
Merge pull request #1597 from jublonet/feature/2270-balance-lowercase-i

[FIX] Balance overview: Make currency font clearer
Merge pull request #1599 from jublonet/feature/2378-destination-tag-spacing

[FIX] Send: Add spacing for destination tag hider
Merge pull request #1605 from jublonet/feature/update-pot

[TASK] L10n: Update messages.
Merge pull request #1606 from yongsoo/fix/notifications

[FIX] Trustline: Fix notifications when deleting trustline
Merge pull request #1611 from yongsoo/fix/gbi

[TASK] Trade: Clearer copy when order is filled on market order
[TASKS] RT-2387, RT-2388, RT-2389, RT-2390: UI fixes, Button sizes/hovers
[fix] UI: midred button colour
[TASK] RT-2382, RT-2383 KYC UI update, Login Verification cancel btn
Merge pull request #1613 from Mesrop/develop-09-10

[TASK] RT-2387, RT-2388, RT-2389, RT-2390, RT-2382, RT-2383: UI fixes, Button sizes/hover, KYC UI
[FEATURE] Snapswap USD funding flow
[FIX] L10n: Switch to English language properly

RT-2185 #inreview
When switching to English, the stored language was actually reset to
blank instead. For browsers that don't use English as default language,
this causes the user's language preference to load instead of English.
When the user wants to switch to English, it should be done.
[TASK] Remove titles from Send, Convert pages

RT-2371 #inreview
[FIX] L10n: Make SSN string not localizable

RT-1539 #inreview
The kyc string "Last 4 digits of Social Security Number" is U.S. only.