`res/xml/qwerty_lv.xml` was updated to add the missing full stop
character (`.`) as it got lost when the bottom row was moved to a
separate XML `res/xml/bottom_row.xml` as it was placed on the
arrows key.
Additionally `?` was relocated, giving its place to the full stop.
Show these characters only for users that have the corresponding locale
installed (a supported eu language for €, en-GB for £).
Add these characters to most layouts.
Add a new boolean parameter "edgekeys" for defining keys that have the
additional (swipe) keys on the edges (top, right, left, bottom) instead
of at the corners (top left, top right, bottom left, bottom right).
A customised Latvian specific QWERTY layout (QWERTY (Latvian)) was added
to access all Latvian diacritic characters with a swipe.
Additionally caron, cedille and macron accents were enabled for this
layout.
