Improve Pydantic error handling

src/rendercv/schema/error_dictionary.yaml

@@ -3,14 +3,12 @@ Input should be 'present': This is not a valid `end_date`. Please use either YYY
 Input should be a valid integer, unable to parse string as an integer: This is not a valid date. Please use either YYYY-MM-DD, YYYY-MM, or YYYY format.
 String should match pattern '\\d{4}-\\d{2}(-\\d{2})?': This is not a valid date. Please use either YYYY-MM-DD, YYYY-MM, or YYYY format.
 String should match pattern '\\b10\\..*': A DOI prefix should always start with "10.". For example, "10.1109/TASC.2023.3340648".
-URL scheme should be 'http' or 'https': This is not a valid URL.
+Input should be a valid URL: This is not a valid URL.
 Field required: This field is required.
 value is not a valid phone number: This is not a valid phone number.
 month must be in 1..12: The month must be between 1 and 12.
 day is out of range for month: The day is out of range for the month.
 must be in range: The day is out of range for the month.
 Extra inputs are not permitted: This field is unknown for this object. Please remove it.
-Input should be a valid string: This field should be provided or removed to use the default value.
 Input should be a valid list: This field should contain a list of items but it doesn't.
-"value is not a valid color: value must be tuple, list or string": 'This is not a valid color. Here are some examples of valid colors: "red", "#ff0000", "rgb(255, 0, 0)", "hsl(0, 100%, 50%)"'
-"value is not a valid color: string not recognised as a valid color": 'This is not a valid color. Here are some examples of valid colors: "red", "#ff0000", "rgb(255, 0, 0)", "hsl(0, 100%, 50%)"'
+"value is not a valid color": 'This is not a valid color. Here are some examples of valid colors: "red", "#ff0000", "rgb(255, 0, 0)", "hsl(0, 100%, 50%)"'

src/rendercv/schema/models/settings/settings.py

@@ -14,9 +14,6 @@ class Settings(BaseModelWithoutExtraKeys):
             'The date to use as "current date" for filenames, the "last updated" label,'
             " and time span calculations. Defaults to the actual current date."
         ),
-        json_schema_extra={
-            "default": None,
-        },
     )
     render_command: RenderCommand = pydantic.Field(
         default_factory=RenderCommand,

src/rendercv/schema/pydantic_error_handling.py

@@ -20,6 +20,7 @@ unwanted_locations = (
     "list",
     "literal",
     "int",
+    "str",
     "constrained-str",
     "function-after",
 )