Tags shouldn't be case sensitive

[iansoper]

Describe the bug

If I have two tags that have the same characters (but one is upper case and one is lower case), they show up as different tags in the sidebar. I would like for them to be one tag, not two.

Steps to reproduce

1. Create two different memos, one tagged as #Tag and the other as #tag
2. Both tags will show up in the sidebar

Expected: One tag will be in the sidebar, ignoring the case.

Screenshots or additional context

No response

[iansoper]

I've also noticed that tags also include punctuation, when they probably shouldn't. For instance, when you create a note like this: #Today I'm at home. Feeling good #today, how are you feeling #today? #today. I would expect all of those to be the same tag, but it makes 4 different tags: #Today, #today,, #today?, and #today

[gitkeniwo]

I've also noticed that tags also include punctuation, when they probably shouldn't. For instance, when you create a note like this: #Today I'm at home. Feeling good #today, how are you feeling #today? #today. I would expect all of those to be the same tag, but it makes 4 different tags: #Today, #today,, #today?, and #today

You could add an extra space to mark the end of a tag, like #today ,. Sometimes people may need punctuations in their tag. I don't think excluding the punctuations is the ideal solution.