Enhance stop data handling by adding support for multiple YAML override files and improving coordinate accuracy for various stops

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+# Bus Stop Overrides
+
+This file defines custom overrides for specific bus stops in YAML format.
+
+## Format
+
+```yaml
+stopId:            # Numeric ID of the stop to override
+    name:            # Override the name (string)
+    alternateNames:  # Additional names for the stop (map)
+        key:         # e.g. name used in metro maps
+    location:        # Override location coordinates (map)
+        latitude:      # New latitude value (float)
+        longitude:     # New longitude value (float)
+    hide:            # Hide the stop from the map and list (boolean)
+    amenities:       # List of amenities available at this stop (list)
+        - shelter
+        - real-time display
+```
+
+## Field Descriptions
+
+- **stopId** (integer): Unique identifier of the bus stop.  
+- **alternateNames** (object): Other names used in different contexts.
+    - **key** (string): Name used in a specific context, such as `metro`.
+- **location** (object):
+    - **latitude** (float): Override latitude coordinate.  
+    - **longitude** (float): Override longitude coordinate.  
+- **hide** (boolean): Set to `true` to exclude the stop from maps and listings.  
+- **amenities** (array of strings): Amenities available at this stop, such as `shelter` or `real-time display`. For now, only those two will be supported in the app.
+
+## Example
+
+```yaml
+12345:
+    name: "Central Station"
+    alternateNames:
+        metro: "Main Hub"
+    location:
+        latitude: 40.712776
+        longitude: -74.005974
+    hide: false
+    amenities:
+        - shelter
+        - real-time display
+```
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