Does this work?

css_inject.py

@@ -8,32 +8,42 @@
 from css_browserhook import BrowserTabHook as CssTab, inject, remove
 
 CLASS_MAPPINGS = {}
+SUCCESSFUL_FETCH_THIS_RUN = False
+
+async def fetch_class_mappings(css_translations_path : str):
+    global SUCCESSFUL_FETCH_THIS_RUN
+
+    if (SUCCESSFUL_FETCH_THIS_RUN):
+        return
 
-async def initialize_class_mappings():
-    css_translations_path = os.path.join(get_theme_path(), "css_translations.json")
     setting = store_read("beta_translations")
     css_translations_url = "https://api.deckthemes.com/beta.json" if (setting == "1" or setting == "true") else "https://api.deckthemes.com/stable.json"
 
-    timeout = 20
-    while timeout > 0:
-        try:
-            async with aiohttp.ClientSession(timeout=aiohttp.ClientTimeout(total=2)) as session:
-                async with session.get(css_translations_url) as response:
-                    if response.status == 200:
-                        with open(css_translations_path, "w", encoding="utf-8") as fp:
-                            json.dump(await response.json(), fp)
+    try:
+        async with aiohttp.ClientSession(timeout=aiohttp.ClientTimeout(total=2)) as session:
+            async with session.get(css_translations_url) as response:
+                if response.status == 200:
+                    with open(css_translations_path, "w", encoding="utf-8") as fp:
+                        json.dump(await response.json(), fp)
 
-                        break
+                        SUCCESSFUL_FETCH_THIS_RUN = True
+                        Log(f"Fetched css translations from server")
+
+    except Exception as ex:
+        Log(f"Failed to fetch css translations from server: {str(ex)}")
+
+async def every(__seconds: float, func, *args, **kwargs):
+    while True:
+        await func(*args, **kwargs)
+        await asyncio.sleep(__seconds)
+
+async def initialize_class_mappings():
+    css_translations_path = os.path.join(get_theme_path(), "css_translations.json")
 
-            await asyncio.sleep(0.5)
-        except Exception as ex:
-            Log(f"Failed to fetch css translations from server: {str(ex)}")
-            await asyncio.sleep(3)
-        finally:
-            timeout -= 1
+    asyncio.get_event_loop().create_task(every(60, fetch_class_mappings, css_translations_path))
 
     if not os.path.exists(css_translations_path):
-        Log("Failed to get css translations from server or from local file")
+        Log("Failed to get css translations from local file")
         return
 
     with open(css_translations_path, "r", encoding="utf-8") as fp: