fix: require all study space fields

src/routes/space/+page.svelte

@@ -67,10 +67,15 @@
         await uploadStudySpace();
     }}
 >
-    <Image name="study-space-image" minHeight="16rem" bind:files={spaceImg} />
+    <Image name="study-space-image" minHeight="16rem" bind:files={spaceImg} required />
 
     <label for="location">Enter the name:</label>
-    <Text name="location" bind:value={studySpaceData.location} placeholder="Room 123, Floor 1" />
+    <Text
+        name="location"
+        bind:value={studySpaceData.location}
+        placeholder="Room 123, Floor 1"
+        required
+    />
 
     <label for="description">Add a description:</label>
     <Textarea
@@ -78,6 +83,7 @@
         bind:value={studySpaceData.description}
         placeholder="A quiet, but small study space..."
         rows={5}
+        required
     />
 
     <label for="address">Add an address:</label>
@@ -85,6 +91,7 @@
         name="address"
         bind:value={studySpaceData.building_address}
         placeholder="180 Queen's Gate, London, SW7 5HF"
+        required
     />
 
     <div class="submit">