Update jquery.uls and .ime from upstream

jquery.uls:
* Localisation updates.
* Change font-size unit from px to em
  See https://github.com/wikimedia/jquery.uls/pull/408
* Update language-data:
  See https://github.com/wikimedia/jquery.uls/pull/412
* Minor internal JS code cleanup for eslint.
Updating to
fe46a2f7ce

jquery.ime
* In API calls, accept langCodes that have no input methods
  See https://github.com/wikimedia/jquery.ime/pull/460
* Add a layout for the General Alphabet of Cameroon Languages
Updating to
ac21ea1b4a

Change-Id: I2be4ee30f649f6a906e776c37afa0ebdf2dc454f

lib/jquery.uls/i18n/scn.json

@@ -18,5 +18,5 @@
 	"uls-common-languages": "Lingui cchiù scigghiuti",
 	"uls-no-results-suggestion-title": "Poi èssiri ntirissatu a:",
 	"uls-search-help": "È pussìbbili arricircari pi nomu, nomu dô script, còdice ISO dâ lingua o si pò navigari tràmiti riggiuni.",
-	"uls-search-placeholder": "Arricerca lingua"
+	"uls-search-placeholder": "Arricerca na lingua"
 }