user: align 'me' project leaderboard display values with web

[synrg]

The me display sometimes shows values different from the web.

We discovered a mismatch in observation counts because in ,me and ,my, the web links are missing verifiable=any. Without this parameter, even if the project allows any (like our ever project, i.e. Discord iNaturalist Server), the linked display from the observation count stat in the ,me to the corresponding observations display on the web will not show the same observations count. The web display will default to verifiable=true, and the number will be lower than in the bot display, leaving the user confused.

Other, less serious possible causes of discrepancies relate to caching. They have been moved to #160

[synrg]

Fixed the bug mentioned at the beginning of the report in df0c727 and have split the other ideas off to #160