Upgrade erlang/elixir runtimes and application dependencies

[joaodubas]

Keep the application updated by upgrading the following:

1. Runtimes:
   • erlang 26.2.5
   • elixir 1.16.3
2. Dependencies:
   • castore from 0.1.22 to 1.0.7
   • ecto_network from 1.3.0 to 1.5.0
   • ecto_sql from 3.11.1 to 3.11.3
   • esbuild from 0.5.0 to 0.8.1
   • flame from 0.1.12 to 0.2.0
   • gettext from 0.20.0 to 0.24.0
   • heroicons from 0.2.4 to 0.5.5
   • libcluster from 3.3.1 to 3.3.3
   • mint from 1.5.2 to 1.16.1
   • phoenix from 1.7.12 to 1.7.14
   • phoenix_ecto from 4.4.0 to 4.6.1
   • phoenix_html from 3.3.4 to 4.1.1
   • phoenix_live_reload from 1.4.0 to 1.5.3
   • postgrex from 0.17.5 to 0.18.0
   • req from 0.4.14 to 0.5.0
   • swoosh from 1.8.2 to 1.16.9
   • telemetry_metrics from 0.6.1 to 1.0.0
   • telemetry_poller from 1.0.0 to 1.1.0

Also, apply the following changes:

1. update the naming for some icons, due to the upgrade to heroicons v2.
2. fixes warnings due to failures in link and form
3. set runtime version using asdf