feat: MIN constant as a source option (#3639)

* feature request #1635

- added MIN (-MAX -> -1024) as source

* fix rebase

* fix rebase

* change to use language strings for MIN/MAX instead of instance

updated CN and TX language file for MINuse -RESX for MIN instead of magi numbercode cleanup

* updated test sources

* updated JP language

* JP language: changed translation text

* updated HE language translations

companion/src/firmwares/rawsource.cpp

@@ -186,6 +186,9 @@ QString RawSource::toString(const ModelData * model, const GeneralSettings * con
     case SOURCE_TYPE_ROTARY_ENCODER:
       return CHECK_IN_ARRAY(rotary, index);
 
+    case SOURCE_TYPE_MIN:
+      return tr("MIN");
+
     case SOURCE_TYPE_MAX:
       return tr("MAX");