feat: add documents to Lesson materials (#572)

* feat: Initial logic for the pdf upload

* feat: uploa logic, translations and ui flow complete

* chore:console log cleanup

* feat: fixed upload issue and added cancel upload button

* feat: fixing the download document ish

* feat: All done and ready for use

* feat: updated the document viewing logic

* feat: some minor refactor

* feat: added migration file

* fix: dark mode, translations, restyling,

---------

Co-authored-by: Rotimi Best <best@classroomio.com>

apps/dashboard/src/lib/utils/translations/en.json

@@ -663,8 +663,46 @@
                 "upgrade": "Upgrade your plan to upload vidoes",
                 "uploading": "Uploading...",
                 "invalid_youtube": "Invalid YouTube link(s)",
-                "invalid_link": "Invalid link(s)"
+                "invalid_link": "Invalid link(s)",
+                "cancel_upload": "Cancel Upload",
+                "upload_cancelled": "Upload cancelled by user"
               }
+            },
+            "document": {
+              "title": "Docs",
+              "add_document": "Add Document",
+              "no_document": "No documents uploaded yet",
+              "view_document": "View Document",
+              "download": "Download",
+              "upload_document": "Upload Document",
+              "upload_title": "Upload Document",
+              "upload_description": "Upload PDF, DOCX, or DOC files. Maximum size: 5MB",
+              "drag_drop": "Drag and drop your document here",
+              "or": "or",
+              "choose_file": "Choose File",
+              "cancel": "Cancel",
+              "uploading": "Uploading...",
+              "upload_success": "Document uploaded successfully!",
+              "upload_error": "Failed to upload document",
+              "file_type_error": "File type not supported. Please upload PDF, DOCX, or DOC files.",
+              "file_size_error": "File size too large. Maximum size is {size}.",
+              "type": "Type",
+              "size": "Size",
+              "upload_error_title": "Upload Error",
+              "upload_error_message": "Unsupported file format or upload failed",
+              "upload_error_try_again": "Please try again with a valid document file",
+              "try_again": "Try Again",
+
+              "cancel_upload": "Cancel Upload",
+              "upload_cancelled": "Upload cancelled by user",
+              "downloading": "Downloading...",
+              "view_pdf": "View PDF",
+              "delete": "Delete",
+              "page_of": "Page {page} of {total}",
+              "loading_pdf": "Loading PDF...",
+              "failed_to_load_pdf": "Failed to load PDF document",
+              "failed_to_render_pdf": "Failed to render PDF page",
+              "use_arrow_keys": "Use arrow keys to navigate, +/- to zoom, or click the controls above. Right-click is disabled."
             }
           },
           "button_done": "Done"