Automatically removes leading and trailing spaces from tags because tags

are often entered with a space after each comma.
This uses .trim() in func.render_tags() to remove when rendering as well
as .map(str => str.trim()) when a post or post edit is submitted so they
are also stored without spaces.

src/functions.js

@@ -44,7 +44,7 @@ export function render_tags(tags) {
     }
     else {
         for (let tag_index = 0; tag_index < tags.length; tag_index++) { // Loop over each tag
-            string += `<a href="/tag/${tags[tag_index]}">${tags[tag_index]}</a>` // Adds the tag to the string as a HTML href
+            string += `<a href="/tag/${tags[tag_index].trim()}">${tags[tag_index].trim()}</a>` // Adds the tag to the string as a HTML href
             if (tag_index < tags.length - 1) { // If there are more tags, then insert a comma
                 string += ", ";
             }