feat: add fixed position coordinate picker (#909)

* chore: remove unused logo SVG files

* feat: add interactive fixed position picker with map interface

- Created new FixedPositionPicker component with clickable map for setting device coordinates
- Added form field type for fixed position picker that appears when fixedPosition toggle is enabled
- Implemented position request functionality to retrieve current device location

* feat: display altitude unit based on user's display settings

- Added dynamic altitude unit (Meters/Feet) that respects the user's imperial/metric display preference
- Updated altitude field description to show the appropriate unit instead of hardcoded "Meters"

* refactor: replace any type with MapLayerMouseEvent in map click handler

* refactor: improve accessibility and code quality in FixedPositionPicker

- Replace hardcoded IDs with useId() hook for proper accessibility
- Use Number.isNaN() instead of isNaN() for more reliable type checking
- Add radix parameter to parseInt() and remove unnecessary fragment wrapper

* refactor: simplify fixed position picker integration

- Removed dedicated FixedPositionPicker form field type in favor of toggle's additionalContent prop
- Moved FixedPositionPicker to render conditionally within toggle field instead of as separate dynamic field
- Streamlined form field types by eliminating FixedPositionPickerFieldProps

* style: format code with consistent line breaks and import ordering

* refactor: simplify fixed position picker container styling

* feat: disable fixed position toggle when GPS is enabled

* refactor: use ComponentRef instead of ElementRef in Switch component

* refactor: replace interactive map picker with inline coordinate fields for fixed position

- Removed FixedPositionPicker component with map interface
- Added latitude, longitude, and altitude fields directly to position form
- Moved coordinate validation into PositionValidationSchema with proper min/max bounds
- Updated translation strings to include coordinate ranges and improved altitude description
- Coordinates now sent via setFixedPosition admin message on form submit when fixedPosition is enabled

* refactor: simplify toggle field by removing additionalContent prop and unused field spreading

- Removed additionalContent prop and its JSDoc documentation from ToggleFieldProps
- Removed rendering of additionalContent below toggle switch
- Cleaned up Controller render function by removing unused rest spread operator
- Renamed field destructuring to controllerField for clarity

* refactor: improve fixed position handling and add position broadcast request

- Restructure onSubmit to save config before sending admin message
- Add position broadcast request after setting fixed position to immediately update display
- Add comprehensive debug logging throughout submission flow
- Extract coordinate exclusion logic earlier in submission process for clarity
- Add 1 second delay before requesting position broadcast to allow fixed position processing

* feat: add max length constraint to latitude and longitude fields

- Set fieldLength.max to 10 for both latitude and longitude inputs
- Prevents excessive decimal precision while maintaining 7 decimal places (±1.1cm accuracy)

packages/web/public/i18n/locales/en/config.json

@@ -283,7 +283,19 @@
     },
     "fixedPosition": {
       "description": "Don't report GPS position, but a manually-specified one",
-      "label": "Fixed Position"
+      "label": "Fixed Position",
+      "latitude": {
+        "label": "Latitude",
+        "description": "Decimal degrees between -90 and 90 (e.g., 37.7749)"
+      },
+      "longitude": {
+        "label": "Longitude",
+        "description": "Decimal degrees between -180 and 180 (e.g., -122.4194)"
+      },
+      "altitude": {
+        "label": "Altitude",
+        "description": "Optional — enter the altitude in {{unit}} above sea level (e.g., 100). Leave blank if unknown or add extra height for antennas/masts."
+      }
     },
     "gpsMode": {
       "description": "Configure whether device GPS is Enabled, Disabled, or Not Present",