Refactor get_popos()

quickget

@@ -1285,11 +1285,9 @@ function get_popos() {
     local ISO=""
     local URL=""
 
-    URL=$(wget -q -O- "https://api.pop-os.org/builds/${RELEASE}/${EDITION}" | jq ".url")
-    URL="${URL//\"/}"
-    ISO=$(echo "${URL}" | sed -e "s/.*\/\([^\/]*\)$/\1/")
-    HASH=$(wget -q -O- "https://api.pop-os.org/builds/${RELEASE}/${EDITION}" | jq ".sha_sum")
-    HASH="${HASH//\"/}"
+    URL=$(wget -q -O- "https://api.pop-os.org/builds/${RELEASE}/${EDITION}" | jq -r .url)
+    ISO="${URL##*/}"
+    HASH=$(wget -q -O- "https://api.pop-os.org/builds/${RELEASE}/${EDITION}" | jq -r .sha_sum)
     web_get "${URL}" "${VM_PATH}"
     check_hash "${ISO}" "${HASH}"
     make_vm_config "${ISO}"