New view-task page and updated deps

This release modifies the view-task page to have a more aesthetic and more responsive layout. It also updates the python version to 3.11 and updates several dependencies.

Diagnostics for getting an attachment

Exceptions when getting an attachment should now be logged.

Import/export fixes and case-insensitive search

This release fixes a few minor bugs in the import and export code. It also changes the search feature to be case-insensitive

Postgres TLS support

This release makes PostgreSQL the primary supported database. It also cleans up configuration processing, so that defaults don't conflict with file options (e.g. TUDOR_DB_URI_FILE). It also adds a db options config param, for passing additional connection parameters to the ORM.

Configuring via files

This release adds new configuration parameters for getting the secret key and DB uri from files, which can be more secure than environment variables for storing credentials and other sensitive/secret information.

New Import and Export commands

This release adds new command-line options for exporting and importing tasks, tags, notes, attachments (the records but not the actual files), users, and options from/to the database. Similar functionality was already available through the web UI, but now it is also available from the command line.

Minor auth bug fix

This release fixes a minor bug in the authentication code. The bug was not a security vulnerability per se, just the site of a potential crash.

Upgrade to python 3

This release upgrades the code to run under python3 instead of python2. It also updates all dependencies to the latest versions. It reduces the docker image from 900+ MB down to 131MB.

First versioned release

Merge pull request #70 from izrik/containerize

Containerize