Prop 131: Increase minimum proposal deposit

Description

We propose to change the minimum deposit for governance proposals from 1k to 40k GRAV to discourage scam proposals.

Note: Any proposal done in good faith can seek community support in reaching minimum deposit, if necessary.

Prior discussion

• Should Gravity increase the proposal deposit?
• There was also discussion on GravityBridge discord governance channel where the amount of 40k GRAV was agreed on.