feat: redesign project sharing & initial registration

redesigned the project sharing popup to be a multi select dropdown
that populates the options by using the input as a fuzzy search filter
on the current users & invited users.

users can now also be directly invited by email from the project share
window. if invited this way, then the user will receive an email
that sends them to a registration page, then a confirmation page.

the initial registration was always redone so that it uses a similar
system to the above in that it now will accept the first registered
user if there are no other accounts (besides 'system').

conf/air.toml

@@ -0,0 +1,47 @@
+# Config file for [Air](https://github.com/cosmtrek/air) in TOML format
+
+# Working directory
+# . or absolute path, please note that the directories following must be under root.
+root = "."
+tmp_dir = "tmp"
+
+[build]
+# Just plain old shell command. You could use `make` as well.
+cmd = "go build -o ./dist/taskcafe cmd/taskcafe/main.go"
+# Binary file yields from `cmd`.
+bin = "dist/taskcafe"
+# Customize binary.
+full_bin = "./dist/taskcafe web"
+# Watch these filename extensions.
+include_ext = ["go"]
+# Ignore these filename extensions or directories.
+exclude_dir = ["dist", "frontend"]
+# Watch these directories if you specified.
+include_dir = []
+# Exclude files.
+exclude_file = []
+# This log file places in your tmp_dir.
+log = "air.log"
+# It's not necessary to trigger build each time file changes if it's too frequent.
+delay = 1000 # ms
+# Stop running old binary when build errors occur.
+stop_on_error = true
+# Send Interrupt signal before killing process (windows does not support this feature)
+send_interrupt = false
+# Delay after sending Interrupt signal
+kill_delay = 500 # ms
+
+[log]
+# Show log time
+time = false
+
+[color]
+# Customize each part's color. If no color found, use the raw app log.
+main = "magenta"
+watcher = "cyan"
+build = "yellow"
+runner = "green"
+
+[misc]
+# Delete tmp directory on exit
+clean_on_exit = true