chore: removed google fonts dependency #54 (#55)

## Pull Request Description

Added the google fonts locally
Also added back saved servers for web

## Issue Being Fixed

Issue Number: #54 

## Screenshots / Recordings

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## Checklist

- [ ] If a new package was added, did you ensure it works for all
supported platforms? Is the package also well maintained?
- [ ] Did you add localization for any text? If yes, did you sort the
.arb file using ```arb_utils sort <INPUT_FILE>```?
- [ ] Check that any changes are related to the issue at hand.

---------

Co-authored-by: PartyDonut <PartyDonut@users.noreply.github.com>

lib/theme/fonts.dart

@@ -0,0 +1,115 @@
+import 'package:flutter/material.dart';
+
+class FladderFonts {
+  static TextTheme rubikTextTheme([TextTheme? textTheme]) {
+    textTheme ??= ThemeData.light().textTheme;
+
+    return TextTheme(
+      displayLarge: TextStyle(
+        fontFamily: 'Rubik',
+        fontSize: textTheme.displayLarge?.fontSize,
+        fontVariations: [
+          const FontVariation('wght', 300),
+        ],
+      ),
+      displayMedium: TextStyle(
+        fontFamily: 'Rubik',
+        fontSize: textTheme.displayMedium?.fontSize,
+        fontVariations: [
+          const FontVariation('wght', 400),
+        ],
+      ),
+      displaySmall: TextStyle(
+        fontFamily: 'Rubik',
+        fontSize: textTheme.displaySmall?.fontSize,
+        fontVariations: [
+          const FontVariation('wght', 500),
+        ],
+      ),
+      headlineLarge: TextStyle(
+        fontFamily: 'Rubik',
+        fontSize: textTheme.headlineLarge?.fontSize,
+        fontVariations: [
+          const FontVariation('wght', 600),
+        ],
+      ),
+      headlineMedium: TextStyle(
+        fontFamily: 'Rubik',
+        fontSize: textTheme.headlineMedium?.fontSize,
+        fontVariations: [
+          const FontVariation('wght', 700),
+        ],
+      ),
+      headlineSmall: TextStyle(
+        fontFamily: 'Rubik',
+        fontSize: textTheme.headlineSmall?.fontSize,
+        fontVariations: [
+          const FontVariation('wght', 800),
+        ],
+      ),
+      titleLarge: TextStyle(
+        fontFamily: 'Rubik',
+        fontSize: textTheme.titleLarge?.fontSize,
+        fontVariations: [
+          const FontVariation('wght', 400),
+        ],
+      ),
+      titleMedium: TextStyle(
+        fontFamily: 'Rubik',
+        fontSize: textTheme.titleMedium?.fontSize,
+        fontVariations: [
+          const FontVariation('wght', 500),
+        ],
+      ),
+      titleSmall: TextStyle(
+        fontFamily: 'Rubik',
+        fontSize: textTheme.titleSmall?.fontSize,
+        fontVariations: [
+          const FontVariation('wght', 600),
+        ],
+      ),
+      bodyLarge: TextStyle(
+        fontFamily: 'Rubik',
+        fontSize: textTheme.bodyLarge?.fontSize,
+        fontVariations: [
+          const FontVariation('wght', 400),
+        ],
+      ),
+      bodyMedium: TextStyle(
+        fontFamily: 'Rubik',
+        fontSize: textTheme.bodyMedium?.fontSize,
+        fontVariations: [
+          const FontVariation('wght', 500),
+        ],
+      ),
+      bodySmall: TextStyle(
+        fontFamily: 'Rubik',
+        fontSize: textTheme.bodySmall?.fontSize,
+        fontVariations: [
+          const FontVariation('wght', 400),
+        ],
+      ),
+      labelLarge: TextStyle(
+        fontFamily: 'Rubik',
+        fontSize: textTheme.labelLarge?.fontSize,
+        fontVariations: [
+          const FontVariation('wght', 600),
+        ],
+      ),
+      labelMedium: TextStyle(
+        fontFamily: 'Rubik',
+        fontSize: textTheme.labelMedium?.fontSize,
+        fontVariations: [
+          const FontVariation('wght', 500),
+        ],
+      ),
+      labelSmall: TextStyle(
+        fontFamily: 'Rubik',
+        fontSize: textTheme.labelSmall?.fontSize,
+        fontVariations: [
+          const FontVariation('wght', 400),
+        ],
+      ),
+    );
+  }
+}