feat(blocks): Add text decoder block (#8248)

* Refactor search.py: Add option for raw content scraping in ExtractWebsiteContentBlock

* Add TextDecoderBlock for decoding escape sequences in text

autogpt_platform/backend/backend/blocks/decoder_block.py

@@ -0,0 +1,42 @@
+import codecs
+
+from backend.data.block import Block, BlockCategory, BlockOutput, BlockSchema
+from backend.data.model import SchemaField
+
+
+class TextDecoderBlock(Block):
+    class Input(BlockSchema):
+        text: str = SchemaField(
+            description="A string containing escaped characters to be decoded",
+            placeholder='Your entire text block with \\n and \\" escaped characters',
+        )
+
+    class Output(BlockSchema):
+        decoded_text: str = SchemaField(
+            description="The decoded text with escape sequences processed"
+        )
+
+    def __init__(self):
+        super().__init__(
+            id="2570e8fe-8447-43ed-84c7-70d657923231",
+            description="Decodes a string containing escape sequences into actual text",
+            categories={BlockCategory.TEXT},
+            input_schema=TextDecoderBlock.Input,
+            output_schema=TextDecoderBlock.Output,
+            test_input={"text": """Hello\nWorld!\nThis is a \"quoted\" string."""},
+            test_output=[
+                (
+                    "decoded_text",
+                    """Hello
+World!
+This is a "quoted" string.""",
+                )
+            ],
+        )
+
+    def run(self, input_data: Input, **kwargs) -> BlockOutput:
+        try:
+            decoded_text = codecs.decode(input_data.text, "unicode_escape")
+            yield "decoded_text", decoded_text
+        except Exception as e:
+            yield "error", f"Error decoding text: {str(e)}"