feat: extract into remaining packages

There has been a cyclic dependency.
transaction
	-> treasure_chest
	-> transaction_recurring
	-> transaction

This has been temporarily solved by moving the GenerateTransactions
function into the transaction package. In the future, this function has
to be rewritten to use a proper Service insteas of direct DB access or
replaced with a different system entirely.

internal/dashboard/template.templ

@@ -0,0 +1,32 @@
+package dashboard
+
+import "spend-sparrow/internal/treasure_chest_types"
+
+templ DashboardComp(treasureChests []*treasure_chest_types.TreasureChest) {
+	<div class="mt-10 h-full">
+		<div id="main-chart" class="h-96 mt-10"></div>
+		<div id="treasure-chests" class="h-96 mt-10"></div>
+		<section>
+			<form class="flex items-center justify-end gap-4 mr-40">
+				<label for="treasure-chest">Treasure Chest:</label>
+				<select id="treasure-chest-id" name="treasure-chest-id" class="bg-white input">
+					<option value="">- Select Treasure Chest -</option>
+					for _, parent := range treasureChests {
+						if parent.ParentId == nil {
+							<optgroup label={ parent.Name }>
+								for _, child := range treasureChests {
+									if child.ParentId != nil && *child.ParentId == parent.Id {
+										<option
+											value={ child.Id.String() }
+										>{ child.Name }</option>
+									}
+								}
+							</optgroup>
+						}
+					}
+				</select>
+			</form>
+			<div id="treasure-chest" class="h-96 mt-10"></div>
+		</section>
+	</div>
+}