Add a page describing all general settings (#401)

* Add a page describing all general settings

* Make the customize search bar session better

* fix withspace and fix end of files

* fix whitespace

* last whitespace

* Update documentation/get-started/settings.en.md

* Change the intro phrase

* Update documentation/get-started/settings.en.md

---------

Co-authored-by: Ivan Ivanov <[email protected]>

documentation/get-started/settings.en.md

@@ -0,0 +1,129 @@
+---
+title: General settings
+tx_slug: documentation_get-started_settings
+---
+
+# General settings
+
+The general settings page allows you to control basic appearance and behavior of the app.
+
+## Customize search bar
+
+You can change what you want or not be able to search from the search bar.
+
+- **Features from active layer**
+
+Returns a list of features from the active layer with matching attributes.
+Restricting matching to a single attribute is done by identifying its name with an `@`.
+
+When disabled, this locator filter can still be used by typing the prefix **f** in the search bar.
+
+Check the box "Enable **Features from active layers** locator by default".
+
+- **Features in all layers**
+
+Returns a list of features across all searchable layers with matching display name.
+
+Check the box "Enable **Go to coordinate** locator by default".
+
+- **Spatial bookmarks**
+
+Returns a list of user and currently open project bookmarks with matching names.
+
+Check the box "Enable **Spatial bookmarks** locator by default".
+
+- **Calculator**
+
+Returns a list of locations and addresses within Finland with matching terms.
+
+When disabled, this locator filter can still be used by typing the prefix **fia** in the search bar.
+
+Check the box "Enable **Calculator** locator by default".
+
+- **Finnish address search**
+
+Returns the value of an expression typed in the search bar.
+
+Check the box "Enable **Finnish address search** locator by default".
+
+## Show scale bar
+
+By switching on "Show scale bar" it will show the scale bar on the map.
+
+## Maximized attribute form
+
+By switching on "Maximized attribute form" it will maximize the attribute form.
+
+## Fixed scale navigation
+
+When fixed scale navigation is active, focusing on a search result will pan to the feature.
+With fixed scale navigation disabled, it will pan and zoom to feature.
+
+## Show digitizing information
+
+When switched on, coordinate information, such as latitude and longitude, is overlayed onto the map while digitizing new features or usting measure tool.
+
+## Show bookmarks
+
+When switched on, user's saved and currently opened project bookmarks will be displayed on the map.
+
+## Use native camera
+
+If disabled, QField will use a minimalist internal camera instead of the camera app on the device.
+Tip: Enable this option and install the open camera app to create geo tagged photos.
+
+## Fast editing mode
+
+If enabled, the feature is stored after having a valid geometry and the constraints are fulfilled and attributes are committed immediately.
+
+## Use volume keys to digitize
+
+If enabled, pressing the device's volume up key will add a vertex while pressing volume down key will remove the last entered vertex during digitizing sessions.
+
+## Consider mouse as a touchscreen device
+
+If disabled, the mouse will act as a stylus pen.
+
+## Send anonymized metrics
+
+If enabled, anonymized metrics will be collected and sent to help improve QFiled for everyone.
+
+## Dim screen when idling
+
+Time of inactivity in seconds before the screen brightness get to be dimmed to preserve the battery. Set to 0 to disable dim screen.
+
+## User interface appearance
+
+You can choose from three options:
+
+- Follow system appearance
+- Light theme
+- Dark theme
+
+## User interface font size
+
+You can choose from the following options:
+
+- Tiny
+- Normal
+- Large
+- Extra-large
+
+## User interface language
+
+QField will by default utilize the language present on your device, if a translation is available.
+You are cordially invited to enhance the translation in your native language.
+
+[Translate the app](https://www.transifex.com/opengisch/qfield-for-qgis/); <!-- markdown-link-check-disable-line -->
+
+You can also pick a different language from the drop-down menu.
+
+## Map canvas rendering quality
+
+You can choose from three options:
+
+- Best quality
+- Lower quality
+- Lowest quality
+
+A lower quality trades rendering precision in favor of lower memory usage and rendering time.