fix: remove left padding and improve column spacing in borderless tab…

…le output

This commit addresses the remaining padding issue from the tablewriter v1.1.0
migration by:
- Removing the 1-space left padding that was present in the initial fix
- Increasing right padding from 1 to 2 spaces for better column readability

The new configuration uses `WithPadding(tw.Padding{Left: "", Right: "  ", Overwrite: true})`
to ensure no left padding (fixing the alignment issue) while maintaining readable
spacing between columns.

Fixes #219

fix: restore compact borderless table output for narrow terminals

Configure tablewriter v1.1.0 to use borderless rendition with left-aligned
headers, matching the clean output style from v0.0.5. Disables all borders,
separators, and lines to improve readability on narrow terminal windows.

Fixes #219

docs: add Nix and Winget package manager installation methods

Added installation instructions for:
- Nix (using modern nix commands: nix profile install and nix shell)
- Winget (Windows Package Manager)

Also reorganized package managers section in installation docs to include
MacPorts and Eget which were missing from the detailed documentation.

Uses modern Nix flakes syntax (nixpkgs#doggo) instead of legacy nix-env.

chore: upgrade deps

fix: add ca-certificates in doggo-web

closes #132

chore: upgrade deps

refactor: move main package to cmd/doggo for proper binary naming

fix: proper alignment of help text

fixes #123

ci: add npm caching

Updated to go 1.21

* Updated release workflow to use go 1.21