[Transifex] Updates for project clientcommands (#672)

* [ci skip] Translate en_us.json in nl_NL

41% of minimum 1% translated source file: 'en_us.json'
on 'nl_NL'.

Sync of partially translated files: 
untranslated content is included with an empty translation 
or source language content depending on file format

* [ci skip] Translate en_us.json in sl_SI [Manual Sync]

27% of minimum 1% translated source file: 'en_us.json'
on 'sl_SI'.

Sync of partially translated files: 
untranslated content is included with an empty translation 
or source language content depending on file format

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Co-authored-by: transifex-integration[bot] <43880903+transifex-integration[bot]@users.noreply.github.com>

src/main/resources/assets/clientcommands/lang/nl_nl.json

@@ -1,5 +1,5 @@
 {
-  "commands.calias.notFound": "Alias \"%s\" not found",
+  "commands.calias.notFound": "Alias \"%s\" niet gevonden",
   "commands.calias.illegalFormatException": "The format string was either malformed or too few arguments were supplied",
   "commands.calias.file.readError": "Failed to read alias file",
   "commands.calias.file.writeError": "Failed to write to alias file",

src/main/resources/assets/clientcommands/lang/sl_si.json

@@ -1,5 +1,5 @@
 {
-  "commands.calias.notFound": "Alias \"%s\" not found",
+  "commands.calias.notFound": "Bližnjica \"%s\" ni najdena",
   "commands.calias.illegalFormatException": "The format string was either malformed or too few arguments were supplied",
   "commands.calias.file.readError": "Failed to read alias file",
   "commands.calias.file.writeError": "Failed to write to alias file",