Refactor logging setup across multiple modules to use loguru with consistent configuration

- Updated logging initialization in MessageCalendar, admin_edit_prof, elsa_main, graph, iconLine, searchPage, and richtext modules to use loguru.
- Changed log rotation and retention settings for log files to improve log management.
- Replaced logger.debug/info calls with log.debug/info for consistency.
- Fixed a typo in the searchPage UI and updated related references in the UI files.
- Removed unused imports and cleaned up code for better readability.

src/backend/threads_availchecker.py

@@ -9,18 +9,14 @@ from src.backend.database import Database
 from src.logic.webrequest import BibTextTransformer, WebRequest
 
 # from src.transformers import RDS_AVAIL_DATA
-from loguru import logger as log
+import loguru
 import sys
 
-logger = log
-logger.remove()
-logger.add("logs/application.log", rotation="1 week", retention="1 month", enqueue=True)
-log.add(
-    "logs/availthread.log",
-)
+log = loguru.logger
+log.remove()
+log.add(sys.stdout)
+log.add("logs/application.log", rotation="1 MB", retention="10 days")
 
-# logger.add(sys.stderr, format="{time} {level} {message}", level="INFO")
-logger.add(sys.stdout)
 
 
 class AvailChecker(QThread):
@@ -33,8 +29,8 @@ class AvailChecker(QThread):
         if links is None:
             links = []
         super().__init__(parent)
-        logger.info("Starting worker thread")
-        logger.info(
+        log.info("Starting worker thread")
+        log.info(
             "Checking availability for "
             + str(links)
             + " with appnumber "
@@ -44,7 +40,7 @@ class AvailChecker(QThread):
         self.links = links
         self.appnumber = appnumber
         self.books = books
-        logger.info(
+        log.info(
             f"Started worker with appnumber: {self.appnumber} and links: {self.links} and {len(self.books)} books..."
         )
         time.sleep(2)
@@ -54,7 +50,7 @@ class AvailChecker(QThread):
         state = 0
         count = 0
         for link in self.links:
-            logger.info("Processing entry: " + str(link))
+            log.info("Processing entry: " + str(link))
             data = WebRequest().set_apparat(self.appnumber).get_ppn(link).get_data()
             transformer = BibTextTransformer("RDS")
             rds = transformer.get_data(data).return_data("rds_availability")
@@ -71,14 +67,14 @@ class AvailChecker(QThread):
                 if book["bookdata"].signature == link:
                     book_id = book["id"]
                     break
-            logger.info(f"State of {link}: " + str(state))
+            log.info(f"State of {link}: " + str(state))
             # print("Updating availability of " + str(book_id) + " to " + str(state))
             self.db.setAvailability(book_id, state)
             count += 1
             self.updateProgress.emit(count, len(self.links))
             self.updateSignal.emit(item.callnumber, state)
 
-        logger.info("Worker thread finished")
+        log.info("Worker thread finished")
         # teminate thread
 
         self.quit()