Update user password policy to improve password strength

Updated Content：
1. Optimize images upload function in invoice submission
2. Add notice and correction function of duplicate and used serial numbers in invoice submission

Updated Content:
1. Add save function in Receipt Submission
2. Optimize submission status list
3. Optimize logic of submission Date
4. Fix nternaitonal bugs

Updated Content:
Add Activity Selection Function in Receipt Sumbission

Update Content:
New function - Notice display on homepage

1. New Function in Receipt Submission - PDF upload mode & Multi-picture upload mode
2. Add re-edit function  entry to the homepage

Fixed the recognition problem of invoice date in invoice submission process.

Updated Content:
1. Add new function for re-editing the rejected receipts in submission status
2. Add and modify the standard receipt photos in new receipt submission

Updated content: Optimization of test  option switching; Chinese & English language switching, registration approval and other issues.

Updated content: update the new functions of the points incentives and adjust the international language of the interface.

Optimization: some known bugs

Optimization: some known bugs

Optimization: some known bugs

1. Fixed the international language that prompted errors in the system
2. Fixed the problem that the opening page version of the APP is too low
3. Optimized the UI of the registration page