Added favicon

removed server-side syntaxic coloration, wontfix

Uniformized error pages

fixed form error styling

Added text trimming

finished changing routing

Integrated main templates and started designing new view mode switch, noted TODOs

Cleaned a bit, uniformized handlers

Merge branch 'feature/go-refactor' into 'master'

Feature/go refactor

See merge request Artemix/paste!1

Documented new release

Integrated new search bar design for view mode toggle

Integrated markdown rendering

Finished stylizing generic error page

Documented unit used for memory usage check

Fixed error handling

WIP: Integrated Prometheus stats

Documented CLI arg

Added CLI args

Added type checks

Fixed validation / deserialization

Cleaned up error management