Update blurbs and profiles (#642)

Co-authored-by: ricsign <ricsign123@gmail.com>
Reviewed-on: #642
Reviewed-by: Darren Lo <dlslo@csclub.uwaterloo.ca>

content/team/execs/bryan-chen.md

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+---
+name: Bryan Chen
+role: Treasurer
+---
+
+Hi, I'm Bryan. I'm a PMATH and C&O major student in my 2A term, and also Treasurer of CSC, meaning I help manage budget allocation and process cheque requests - but I'm usually around in CSC to use it as a hangout and working space. Aside from these things my hobbies include drawing, writing short stories, and I'm a really big Touhou Project fan. I look forward to having a good term with you all!