update locale for 1.8 beta2

update wiki placeholder links

Fix MK4 profiles

fix profiles

Signed-off-by: SoftFever <[email protected]>

add more checks and bump version to 1.6.6

fix missing bottom surface in viewer (SoftFever#1899)

* Update Korean translation

* 1. Fix blank button text after translation
2. Fix some mistranslated korean

* -fix bottom surface in gcode viewer
-update korean translation

update locale

update locale and tweak some profiles

bump version to 1.6.4-beta2

update Korean .mo file