App: update mlt, misc small fixes (#634)

* app: bump to pmtiles js v4.4.0 for mlt support [#633]
* update python README [#632]
* app: bump seroval dep

app/package-lock.json

@@ -20,7 +20,7 @@
         "d3-zoom": "^3.0.0",
         "maplibre-gl": "5.13.0",
         "pbf": "^4.0.1",
-        "pmtiles": "^4.3.0",
+        "pmtiles": "^4.4.0",
         "solid-js": "^1.9.5"
       },
       "devDependencies": {
@@ -3474,9 +3474,9 @@
       }
     },
     "node_modules/pmtiles": {
-      "version": "4.3.0",
-      "resolved": "https://registry.npmjs.org/pmtiles/-/pmtiles-4.3.0.tgz",
-      "integrity": "sha512-wnzQeSiYT/MyO63o7AVxwt7+uKqU0QUy2lHrivM7GvecNy0m1A4voVyGey7bujnEW5Hn+ZzLdvHPoFaqrOzbPA==",
+      "version": "4.4.0",
+      "resolved": "https://registry.npmjs.org/pmtiles/-/pmtiles-4.4.0.tgz",
+      "integrity": "sha512-tCLI1C5134MR54i8izUWhse0QUtO/EC33n9yWp1N5dYLLvyc197U0fkF5gAJhq1TdWO9Tvl+9hgvFvM0fR27Zg==",
       "license": "BSD-3-Clause",
       "dependencies": {
         "fflate": "^0.8.2"
@@ -3634,9 +3634,9 @@
       }
     },
     "node_modules/seroval": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/seroval/-/seroval-1.2.1.tgz",
-      "integrity": "sha512-yBxFFs3zmkvKNmR0pFSU//rIsYjuX418TnlDmc2weaq5XFDqDIV/NOMPBoLrbxjLH42p4UzRuXHryXh9dYcKcw==",
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/seroval/-/seroval-1.5.0.tgz",
+      "integrity": "sha512-OE4cvmJ1uSPrKorFIH9/w/Qwuvi/IMcGbv5RKgcJ/zjA/IohDLU6SVaxFN9FwajbP7nsX0dQqMDes1whk3y+yw==",
       "license": "MIT",
       "engines": {
         "node": ">=10"