Renamed all instances of 'seperator'

src/modules/separator.c

@@ -0,0 +1,10 @@
+#include "fastfetch.h"
+
+void ffPrintSeparator(FFinstance* instance)
+{
+    ffPrintLogoLine(instance);
+
+    for(uint32_t i = 0; i < instance->config.titleLength; i++)
+        putchar('-');
+    putchar('\n');
+}