Frontpage update (#179)

This PR introduces an overhaul for the front page and login features while keeping the rest of the application intact.

## Major Changes

- TailwindCSS + DaisyUI Integration: Add  modern CSS framework for component-based utility styling
- Build System: Added pnpm for CSS building; can be extended for updated frontend builds in the future
- Navbar + Footer: Redesigned and includable; old version retained for unstyled elements
- Optimized Assets: Added minified and CSS-stylable logos

## New Features

- Static Pages: Added comprehensive mockups of static pages (legal, privacy policy, terms of use, contact, etc.). **Note:** These have to be fixed before a public release, as their content is largely unreviewed and incorrect. Probably best to do in a separate PR that only contains updates to these.
- Discourse API: Implement minimal features based on RestAPI for controllable results.

## Current bugs
- [x] The static pages include the default navbar and footer on the login page. This will likely not work, as users need to access it before logging in; no good workaround so far (problem with Django templating system).
- [ ] The front page predict link is currently non-functional; the redesigned page is almost ready but better done in a separate PR as it also touches Django code.
- [x] Visual bug with the news cards. Still intend to fix for this PR

Co-authored-by: Tim Lorsbach <tim@lorsba.ch>
Reviewed-on: enviPath/enviPy#179
Reviewed-by: jebus <lorsbach@envipath.com>
Co-authored-by: Tobias O <tobias.olenyi@envipath.com>
Co-committed-by: Tobias O <tobias.olenyi@envipath.com>

static/css/input.css

@@ -0,0 +1,35 @@
+@import "tailwindcss";
+
+/* fira-code-latin-wght-normal */
+@font-face {
+  font-family: 'Fira Code Variable';
+  font-style: normal;
+  font-display: swap;
+  font-weight: 300 700;
+  src: url(https://cdn.jsdelivr.net/fontsource/fonts/fira-code:vf@latest/latin-wght-normal.woff2) format('woff2-variations');
+  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
+}
+
+/* inter-latin-wght-normal */
+@font-face {
+  font-family: 'Inter Variable';
+  font-style: normal;
+  font-display: swap;
+  font-weight: 100 900;
+  src: url(https://cdn.jsdelivr.net/fontsource/fonts/inter:vf@latest/latin-wght-normal.woff2) format('woff2-variations');
+  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
+}
+
+
+/* Tell Tailwind where to find Django templates and Python files */
+@source "../../templates";
+
+/* Custom theme configuration - must come before plugins */
+@import "./theme.css";
+
+/* Import DaisyUI plugin */
+@plugin "daisyui" {
+  logs: true;
+}
+
+@import "./daisyui-theme.css";