[FEATURE] Show error overlay for participants buttons (Resolves DGDG-587)

[Daivasmara]

Ref: DGDG-587

This PR is essentially the same as this PR, but instead of moderator, this one is for participant.

Test Plan

Given user is in locking_phase And user had pending action on proposal When user clicks the action Then show notice overlay

[mikej-digix]

iteration: 1 status: PASSED environment: LOCAL

Test Condition:

• if user clicks pending action on proposal in locking_phase THEN show notification overlay

ACTIONS:

• create proposal
• abort proposal
• edit proposal
• finalize
• endorse
• moderator vote
• claim moderator voting result
• add update
• commit
• reveal
• claim public voting result
• claim failed result
• change funding
• claim funding
• claim milestone