Add trim on save option

I think people who would use this would rather have it automatically every time you save, instead of having to click a button every time.

config.lua

@@ -31,6 +31,7 @@ THEME=
 CHECK_NEW_VERSION=true
 SOFTWARE_RENDERING=false
 UI_SCALE=4
+TRIM_ON_SAVE=false
 
 ---------------------------
 function TIC()

src/studio/config.c

@@ -155,6 +155,7 @@ static void readConfig(Config* config)
             readGlobalBool(lua,     "CHECK_NEW_VERSION",    &config->data.checkNewVersion);
             readGlobalInteger(lua,  "UI_SCALE",             &config->data.uiScale);
             readGlobalBool(lua,     "SOFTWARE_RENDERING",   &config->data.soft);
+            readGlobalBool(lua,     "TRIM_ON_SAVE",         &config->data.trim);
 
             if(config->data.uiScale <= 0)
                 config->data.uiScale = 1;

src/studio/system.h

@@ -119,6 +119,7 @@ typedef struct
     bool checkNewVersion;
     bool cli;
     bool soft;
+    bool trim;
 
     struct StudioOptions
     {