Centralize API.getBrew descended calls to splitTextStyleAndMetadata.

This does not address "static" pages nor change tests that called splitTextStyleAndMetadata in their own fashion.

server/homebrew.api.js

@@ -192,13 +192,13 @@ const api = {
 
 			const fixedStub = migrateSystemsToTags(stub);
 			req.brew = fixedStub;
+			splitTextStyleAndMetadata(req.brew);
 			next();
 		};
 	},
 	getCSS : async (req, res)=>{
 		const { brew } = req;
 		if(!brew) return res.status(404).send('');
-		splitTextStyleAndMetadata(brew);
 		if(!brew.style) return res.status(404).send('');
 
 		res.set({
@@ -344,7 +344,6 @@ const api = {
 					});
 
 				currentTheme = req.brew;
-				splitTextStyleAndMetadata(currentTheme);
 				if(!currentTheme.tags.some((tag)=>tag === 'meta:theme' || tag === 'meta:Theme'))
 					throw { brewId: req.params.id, name: 'Invalid Theme Selected', message: 'Selected theme does not have the meta:theme tag', status: 422, HBErrorCode: '10' };
 				themeName   ??= currentTheme.title;
@@ -383,7 +382,6 @@ const api = {
 		// Initialize brew from request and body, destructure query params, and set the initial value for the after-save method
 		const brewFromClient = api.excludePropsFromUpdate(req.body);
 		const brewFromServer = req.brew;
-		splitTextStyleAndMetadata(brewFromServer);
 
 		if(brewFromServer?.version !== brewFromClient?.version){
 			console.log(`Version mismatch on brew ${brewFromClient.editId}`);