fix: Delete ISO when extraction fails

src/install.sh

@@ -193,7 +193,6 @@ startInstall() {
     ISO="$STORAGE/$CUSTOM"
   fi
 
-  rm -f "$TMP/$BASE"
   return 0
 }
 
@@ -413,6 +412,7 @@ extractImage() {
   if [[ "${iso,,}" == *".esd" ]]; then
     if ! extractESD "$iso" "$dir"; then
       error "Failed to extract ESD file!"
+      rm -f "$iso"
       exit 67
     fi
     return 0
@@ -444,6 +444,7 @@ extractImage() {
 
   if ! 7z x "$iso" -o"$dir" > /dev/null; then
     error "Failed to extract ISO file!"
+    rm -f "$iso"
     exit 66
   fi