Refactor components and pages for improved readability and consistency

- Updated BackgroundImage.astro to format props for better readability.
- Adjusted FightTable.svelte to remove unnecessary trailing commas.
- Modified GroupTable.svelte to fix sorting syntax.
- Cleaned up LanguageWarning.astro by standardizing import statements.
- Enhanced Login.svelte for better formatting and readability.
- Simplified Navbar.svelte by merging multi-line attributes into single lines.
- Streamlined PostComponent.astro by condensing Image component props.
- Improved SearchComponent.svelte for consistent spacing and formatting.
- Refined TagComponent.astro for better readability and structure.
- Updated PageLayout.astro to simplify div structure.
- Enhanced downloads.astro for improved readability and consistency.
- Cleaned up index.astro in help directory for better formatting.
- Refactored index.astro in main pages for improved readability.
- Standardized login.astro for better formatting.
- Cleaned up not-found.astro for consistent import formatting.
- Enhanced [...schem].astro for better readability.
- Refactored [mode].astro for consistent import formatting.
- Improved [...gamemode].astro for better readability.
- Cleaned up [mode].astro in regeln directory for consistent formatting.
- Refactored index.astro in regeln directory for improved readability.
- Enhanced fight.astro for consistent import formatting.

src/components/FightTable.svelte

@@ -57,7 +57,7 @@
             </tr>
         </thead>
         <tbody>
-            {#each window( event.fights.filter((f) => (group === undefined ? true : f.group?.id === group)), rows ) as fights}
+            {#each window( event.fights.filter((f) => (group === undefined ? true : f.group?.id === group)), rows, ) as fights}
                 <tr>
                     {#each fights as fight (fight.id)}
                         <td