services: add snapchat support (#429)

* feat: snapchat support

* chore: remove redundancy

* chore: a bit of better matching

* chore: update readme

* refactor(snapchat): refactor story matching to use pickers

* fix: small fix to directly linked stories

* fix(snapchat): fix filenames

* chore: update readme

* ref(snapchat): rewrite service, new test, split redirects into a util

* fix(snapchat): small fixes

* chore: deepscan error fixed

* fix: remove debug logging

* fix(snapchat): fix merge, clean up code with new utils

* fix(snapchat): update with suggested changes

---------

Signed-off-by: Snazzah <7025343+Snazzah@users.noreply.github.com>
Co-authored-by: jj <log@riseup.net>

src/modules/processing/servicesConfig.json

@@ -114,6 +114,12 @@
             "patterns": ["video/:id"],
             "enabled": true
         },
+        "snapchat": {
+            "alias": "snapchat stories & spotlights",
+            "subdomains": ["t", "story"],
+            "patterns": [":shortLink", "spotlight/:spotlightId", "add/:username/:storyId", "u/:username/:storyId", "add/:username", "u/:username"],
+            "enabled": true
+        },
         "loom": {
             "alias": "loom videos",
             "patterns": ["share/:id"],