Refactor database schema, remove unused SQL files, and update components

src/lib/components/Navbar.svelte

@@ -78,10 +78,6 @@
       <button class="btn btn-primary my-2 md:my-0 md:mr-4" on:click={goToLog}
         >My Log</button
       >
-      <button
-        class="btn btn-primary my-2 md:my-0 md:mr-4"
-        on:click={() => goto("/planner")}>Planner</button
-      >
     {/if}
     <button
       class="btn btn-primary my-2 md:my-0 md:mr-4"